250csc Unlocks: Sophie Month: February Difficulty: Impossible (T10+) Wanted for: (T11) A really nice end-game-worthy weapon; great for challengers with mixed icons.

250csc Unlocks: Crithbolcan Month: April Difficulty: Impossible (T12+) Wanted for: THE Infinite Use Scroll of the end-game. This is the Scroll that most high level battlers use and recommend - you want it.

250csc Unlocks: Baenwurath Month: August Difficulty: Impossible (high T12+) Wanted for: (T12) An interesting weapon with a default attack of 14-25 icons, but a 20% chance of hitting for an enormous 107-151. This averages to roughly 40 icons a turn, which is about the norm for T12. Its a nice toy... just a tad unreliable :P

250csc Unlocks: Cinthilocks Month: September Difficulty: Impossible (T12+) Wanted for: (T11) A massive bomb (105-120 icons) that's really useful for blasting through BQ's and smaller event challengers.

Permanently Available 750csc Unlocks: Meatslab, the Resting Difficulty: Very Hard - Extremely Hard - Impossible (high T12+) Wanted for: (T12) A magma blocking 'God Weapon', and one of the best weapons on the site. Made by combining at the Genetech Lab, which drop from fighting them. Meatslab has 3 stages - Resting, Awakened, and Furious, unlocked by beating the previous stage 10 times and using the new Summoning Altar.

750csc Unlocks: Forj Matriarch, the Dormant Difficulty: Easy - Hard - Impossible (T11+) Wanted for: The biggest OPB heal scroll (1,500:heal:), handy for big pets, insane for small ones. Many high level battlers have several of these. Stages 2 and 3 also drop Parched Baguette Crystals, which are highly valued. Like Meatslab she also has 3 stages - Dormant, Rekindled, and Erupting, unlocked by beating the previous stage a whopping 70 times and using the new Summoning Tome. You can only damage them with Water Icons(:dmg:water:), so you might have to buy specific weapons for her.

750csc Unlocks: Mad Scientist Difficulty: Extremely Hard - Impossible (T12+) Wanted for: (T10) Currently the best (obtainable) option for blocking large amounts of Ice, and it also blocks Magma. Another great end-game weapon. She also drops the Scientist Specs as an achievement prize, which is a great Freezer. She has two stages - Mad and Mutant. Mutant is unlocked by beating the Mad Scientist 10 times and using the Destroyed Research Cabinet.

500csc Unlocks: Fruit Punch Season: Spring Difficulty: Medium Loot: Achievement:

Win 25: Unlocks: Fruit Salad Difficulty: Extremely Hard Loot:

500csc Unlocks: Eventide phoenix Season: Summer Difficulty: Medium Loot: Achievement:

Win 25: Unlocks: Mornrise Serpent Difficulty: Extremely Hard Loot:

500csc Unlocks: Decidiwi Season: Autumn Difficulty: Hard Loot: Achievement:

Win 25: Unlocks: Deadroot Difficulty: Impossible (T11+) Loot:

500csc Unlocks: Fuyaira Season: Winter Difficulty: Medium Loot: Achievement:

Win 25: Unlocks: Odontos Difficulty: Very Hard Loot:

[spoiler=easy] 250csc Unlocks: Crumb-Eating Birds Month: October Loot: Achievement:

250csc Unlocks: Duqinox Month: January Loot: Achievement:

100csc Unlocks: Bramblewyrm Month: May Loot:

100csc Unlocks: Frostholder Month: December Loot:

250csc Unlocks: Gerome the Gnome Month: June Loot: Achievement:

100csc Unlocks: Hasami Tengu Month: July Loot:

100csc Unlocks: Leftover Stuffed Pepper Month: October Loot:

100csc Unlocks: N'sa the Tainted Month: March Loot:

100csc Unlocks: Rendwing Month: November Loot:

250csc Unlocks: The Dry Bovyne Month: January Loot:

100csc Unlocks: Vespus Swarm Month: May Loot:

250csc Unlocks: Volitus Ventri Month: April Loot:

250csc Unlocks: Amalgapede Month: November Loot:

250csc Unlocks: Bruno and Carmela Month: March Loot: Achievement:

250csc Unlocks: Captain's Ashes Month: August Loot:

150csc Unlocks: Chongolongo Month: September Loot:

150csc Unlocks: King Capsaicin Month: May Loot:

250csc Unlocks: Lich Lord Month: November Loot: Achievement:

250csc Unlocks: Polyester Monstrosity Month: May Loot:

250csc Unlocks: Rottgeist Month: November Loot:

250csc Unlocks: Sentient Porridge Month: July Loot:

150csc Unlocks: Sir Salad Mixalot Month: January Loot:

250csc Unlocks: The Sinister Gingerbread Lain House Month: November Loot: Achievement:

250csc Unlocks: Wrole Month: February Loot:

250csc Unlocks: Drowning Betrayal Month: February Loot:

250csc Unlocks: Filantous Month: November Loot: Achievement:

250csc Unlocks: Frystgaard Month: December Loot:

150csc Unlocks: Greasy Joe Month: April Loot:

250csc Unlocks: Jollyjaw Month: July Loot:

150csc Unlocks: Kapitan Kolya Month: January Loot:

250csc Unlocks: Killer King Month: July Loot: Achievement:

150csc Unlocks: Mother of Pearls Month: June Loot:

250csc Unlocks: Paper Spirit Month: September Loot:

150csc Unlocks: Rindgills Month: August Loot:

150csc Unlocks: Sandwort Month: July Loot:

150csc Unlocks: Seartail Month: February Loot:

250csc Unlocks: Stage Fright Month: April Loot:

250csc Unlocks: Terrafirma Month: March Loot: Achievement:

250csc Unlocks: The Beanstalk Month: February Loot: Achievement:

250csc Unlocks: The Dark Forest Month: May Loot: Achievement:

250csc Unlocks: Three Angry Bears Month: August Loot:

150csc Unlocks: Twilight Tricksters Month: August Loot:

250csc Unlocks: Uilliff Month: December Loot: Achievement:

250csc Unlocks: Blossom Month: October Loot: Achievement:

200csc Unlocks: Champain Month: January Loot:

250csc Unlocks: Industrial Slaughterhouse Month: June Loot:

250csc Unlocks: Little Red Month: April Loot:

200csc Unlocks: M1573R-8UN5 Month: April Loot:

200csc Unlocks: Meinlong Month: February Loot:

250csc Unlocks: Melody's Bag of Horror Month: December Loot:

200csc Unlocks: Mortobello Month: October Loot:

250csc Unlocks: Sewer Beast Month: January Loot: [item=life in the sewers: a memoir]

250csc Unlocks: Shrinking Cell Month: January Loot:

250csc Unlocks: Sierrac Month: July Loot: Achievement:

250csc Unlocks: Slaglord Month: January Loot:

250csc Unlocks: Slaughtersaurus Month: April Loot: Achievement:

200csc Unlocks: Spicy Popogaogao Month: July Loot:

250csc Unlocks: Starved Saheric Spirit Month: June Loot:

250csc Unlocks: Surge Month: February Loot: Achievement:

200csc Unlocks: Sweety Dead Queen Month: February Loot:

200csc Unlocks: Talveg Month: September Loot:

250csc Unlocks: The Brotus Month: September Loot: Achievement:

250csc Unlocks: Tortyrant Month: June Loot: Achievement:

200csc Unlocks: Turnip Head Ambrose Month: October Loot:

250csc Unlocks: Vile Carrier Month: May Loot: Achievement:

250csc Unlocks: Biting Cake Month: June Loot:

250csc Unlocks: C.A.P.S. Droid Month: March Loot: [item=C.A.P.S. droid plushie]

250csc Unlocks: Chronocrone Month: October Loot:

250csc Unlocks: Cinthilocks Month: September Loot: Achievement:

250csc Unlocks: Crithbolcan Month: April Loot: Achievement:

250csc Unlocks: Dungarde Month: October Loot: Achievement:

250csc Unlocks: Flamagia Month: May Loot: Achievement:

250csc Unlocks: Jerky Lurkey Month: November Loot:

250csc Unlocks: Menecuda Month: May Loot:

250csc Unlocks: One Three Snake Eyes Month: July Loot:

250csc Unlocks: Prakherash Month: December Loot: Achievement:

250csc Unlocks: Red Diablonoid Month: April Loot:

250csc Unlocks: Shi Long Month: June Loot:

250csc Unlocks: Sophie Month: February Loot: Achievement:

250csc Unlocks: Tatuvichwa Month: August Loot: Achievement:

250csc Unlocks: The Faceless Ones Month: March Loot:

250csc Unlocks: The Giant Month: March Loot: Achievement:

250csc Unlocks: The Witch with the Oven Month: December Loot: Achievement:

250csc Unlocks: The Wolf in Granny's Clothing Month: June Loot:

250csc Unlocks: Tusk and Crookfang Month: December Loot:

250csc Unlocks: Warlgthroth Month: October Loot:

250csc Unlocks: Warship Tutanic Month: March Loot:

250csc Unlocks: Zuppamostro Month: September Loot:

[spoiler=January] 250csc Unlocks: Duqinox Difficulty: Easy Loot: Achievement:

250csc Unlocks: Slaglord Difficulty: Extremely Hard Loot:

250csc Unlocks: The Dry Bovyne Difficulty: Medium Loot:

250csc Unlocks: Sewer Beast Difficulty: Extremely Hard Loot: [item=life in the sewers: a memoir]

250csc Unlocks: Shrinking Cell Difficulty: Extremely Hard Loot:

150csc Unlocks: Sir Salad Mixalot Difficulty: Hard Loot:

200csc Unlocks: Champain Difficulty: Extremely Hard Loot:

150csc Unlocks: Kapitan Kolya Difficulty: Very Hard Loot:

250csc Unlocks: Surge Difficulty: Extremely Hard Loot: Achievement:

250csc Unlocks: The Beanstalk Difficulty: Very Hard Loot: Achievement:

250csc Unlocks: Wrole Difficulty: Hard Loot:

250csc Unlocks: Drowning Betrayal Difficulty: Very Hard Loot:

200csc Unlocks: Meinlong Difficulty: Extremely Hard Loot:

150csc Unlocks: Seartail Difficulty: Very Hard - Extremely Hard Loot:

200csc Unlocks: Sweety Dead Queen Difficulty: Extremely Hard Loot:

250csc Unlocks: Terrafirma Difficulty: Very Hard Loot: Achievement:

250csc Unlocks: The Giant Difficulty: Impossible (T11+) Loot: Achievement:

250csc Unlocks: C.A.P.S. Droid Difficulty: Impossible (T11+) Loot: [item=C.A.P.S. droid plushie]

250csc Unlocks: The Faceless Ones Difficulty: Impossible (T12+) Loot:

100csc Unlocks: N'Sa the Tainted Difficulty: Medium Loot:

150csc Unlocks: Alba Difficulty: Hard Loot:

250csc Unlocks: Warship Tutanic Difficulty: Impossible (T?) Loot:

250csc Unlocks: Crithbolcan Difficulty: Impossible (T12+) Loot: Achievement:

250csc Unlocks: Little Red Difficulty: Extremely Hard Loot:

250csc Unlocks: Volitus Ventri Difficulty: Medium Loot:

250csc Unlocks: Stage Fright Difficulty: Very Hard Loot:

150csc Unlocks: Greasy Joe Difficulty: Very Hard Loot:

250csc Unlocks: Red Diablonoid Difficulty: Impossible (T12+) Loot:

200csc Unlocks: M1573R-8UN5 Difficulty: Extremely Hard Loot:

250csc Unlocks: Flamagia Difficulty: Impossible (T11+) Loot: Achievement:

250csc Unlocks: The Dark Forest Difficulty: Very Hard Loot: Achievement:

250csc Unlocks: Menecuda Difficulty: Impossible (T12+) Loot:

250csc Unlocks: Polyester Monstrosity Difficulty: Hard Loot:

150csc Unlocks: King Capsaicin Difficulty: Hard Loot:

100csc Unlocks: Vespus Swarm Difficulty: Medium Loot:

100csc Unlocks: Bramblewyrm Difficulty: Medium Loot:

250csc Unlocks: Tortyrant Difficulty: Extremely Hard Loot: Achievement:

250csc Unlocks: The Wolf in Granny's Clothing Difficulty: Impossible (T11+) Loot:

250csc Unlocks: Starved Saheric Spirit Difficulty: Extremely Hard Loot:

250csc Unlocks: Industrial Slaughterhouse Difficulty: Extremely Hard Loot:

250csc Unlocks: Biting Cake Difficulty: Impossible (T12+) Loot:

250csc Unlocks: Shi Long Difficulty: Impossible (T12+) Loot:

150csc Unlocks: Mother of Pearls Difficulty: Very Hard Loot:

250csc Unlocks: Sierrac Signet Difficulty: Extremely Hard Loot: Achievement:

250csc Unlocks: Sentient Porridge Difficulty: Hard Loot:

250csc Unlocks: Jellyjaw Difficulty: Very Hard Loot:

250csc Unlocks: One Three Snake Eyes Difficulty: Impossible (T11+) Loot:

200csc Unlocks: Spicy Popogaogao Difficulty: Extremely Hard Loot:

150csc Unlocks: Sandwort Difficulty: Very Hard Loot:

100csc Unlocks: Hasami Tengu Difficulty: Medium Loot:

250csc Unlocks: Tatuvichwa Difficulty: Impossible (T12+) Loot: Achievement:

250csc Unlocks: Three Angry Bears Difficulty: Very Hard Loot:

250csc Unlocks: Atzoatlchu Difficulty: Extremely Hard Loot:

250csc Unlocks: Captain's Ashes Difficulty: Hard Loot:

150csc Unlocks: Rindgills Difficulty: Very Hard Loot:

150csc Unlocks: Twilight Tricksters Difficulty: Very Hard Loot:

250csc Unlocks: The Brotus Difficulty: Extremely Hard Loot: Achievement:

250csc Unlocks: Cinthilocks Difficulty: Impossible (T12+) Loot: Achievement:

250csc Unlocks: Paper Spirit Difficulty: Very Hard Loot:

250csc Unlocks: All Eyes On You Difficulty: Very Hard Loot:

250csc Unlocks: Zuppamostro Difficulty: Impossible (T11+) Loot:

200csc Unlocks: Talveg Difficulty: Extremely Hard Loot:

150csc Unlocks: Chongolongo Difficulty: Hard Loot:

250csc Unlocks: Dungarde Difficulty: Impossible (T11+) Loot: Achievement:

250csc Unlocks: Crumb-Eating Birds Difficulty: Easy Loot: Achievement:

250csc Unlocks: Warlgthroth Difficulty: Impossible (T11+) Loot:

250csc Unlocks: Chronocrone Difficulty: Impossible (T12+) Loot:

100csc Unlocks: Leftover Stuffed Pepper Difficulty: Medium Loot:

200csc Unlocks: Turnip Head Ambrose Difficulty: Extremely Hard Loot:

200csc Unlocks: Mortobello Difficulty: Extremely Hard Loot:

250csc Unlocks: Filantous Difficulty: Very Hard Loot: Achievement:

250csc Unlocks: The Sinister Gingerbread Lain House Difficulty: Hard Loot: Achievement:

250csc Unlocks: Rottgeist Difficulty: Hard Loot:

250csc Unlocks: Amalgapede Difficulty: Hard Loot:

250csc Unlocks: Jerky Lurkey Difficulty: Impossible (T11+) Loot:

100csc Unlocks: Rendwing Difficulty: Medium Loot:

250csc Unlocks: Prakherash Difficulty: Impossible (T12+) Loot: Achievement:

250csc Unlocks: The Witch with the Oven Difficulty: Impossible (T11+) Loot: Achievement:

250csc Unlocks: Frystgaard Difficulty: Very Hard Loot:

250csc Unlocks: Melody's Bag of Horror Difficulty: Extremely Hard Loot:

100csc Unlocks: Frostholder Difficulty: Medium Loot:

250csc Unlocks: Tusk and Crookfang Difficulty: Impossible (T?) Loot:

These two are definitely the best to grab (though they're always available, haha). The first one unlocks the Meatslabs - three opponents of increasing opportunity who achievement drop weapons, culminating in a Baal (which you can turn into a Cronus, but you won't have to! ;). The second one unlocks the Forjes. There are also three of them, and they drop the Parched and Singed Crystals. "Mama Forj", the strongest one, also drops a fantastic scroll at win 5.

[item2=Cinthilocks and the Three Bears] Cinthilocks* Has a nice bomb as an ach prize. It has stronger weapons if you fight it with a tier 12, so you can try fighting it in t11!

[item2=Signet Fusion Knuckles] Crithbolcan* Has a weapon and a scroll as ach prizes! And you've already beat Crith once! :D

[item2=Vandalized Research Notes] Sophie* The Paintbrush Blades are a decent weapon, and at least at one point Sophie was the easiest Impossible, so not bad for token farming!

[item2=Destroyed Research File Cabinet] Mad Scientist / Mutant Scientist Mutant is a really tough one, and this one is unfortunately pretty expensive. But the Unstable Sample Syringe is a pretty good weapon, and the unlock price is a little cheaper than buying one off SS.

[item2=Ominous Stray] ONE THREE SNAKE EYES* idk this one is in in capslock. perhaps i had a reason, hahaha.

[item2=Harmonious Duality Knuckles] Prakherash* Also has a weapon ach prize, but it's nothing to write home about.

[item2=Muffins from Red] The Wolf In Granny's Clothing*

[item2=Binding Tombstone] Warlgthroth*

[item2=Mangled Ladle] Zuppamostro*

[item2=Decadent Cake Slice] Biting Cake A tough one (t12+).

[item2=Mocking Clock] Chronocrone Also tough.

[item2=Empty Mask Box] The Faceless Ones

[item2=Dungarde Signet] Dungarde* Weapon ach prize. It sells higher than the CSC price to unlock, though it'd be HTS, since it's not that great.

[item2=Fire Ice And Air Knuckles] Tatuvichwa Weapon and scroll ach prizes, but they're kinda meh.

[item2=A Castle in the Sky] The Giant* Weapon ach prize, but it's garbo

[item2=Bewitching Oven] The Witch With The Oven* Weapon ach prize, but it's garbo

[item2=Possessed Ornate Propeller] Warship Tutanic*

[item2=Deciduous Summoning Charm] Unlocks two opponents, so costs 500CSC. Deadroot* (the second unlock) drops a book, but because it costs double, it's not a great value

[item2=Decayed Waste Barrel] Menecuda

[item2=Vetan Wilds Legendary Track] RED DIABLONOID

[item2=Shengui Guo Misty Windpeaks Legendary Track] Shi Long

[item2=Arctic Frost Timberline Legendary Track] Tusk And Crookfang