Here's what I have, but I know it could be better. My battle pet is Tier 11 with 143 AP

[item2=Rainbow Vortex] [item2=Phoenix Quill] [item2=Soma Tablets] [item2=Recycle Blaster] [item2=Intricate Energized Helmet] [item2=Golden Goddess Shield] [item2=Sierrac Basal Ice Flail] [item2=Captured Eternal Flame]

Your set is actually great! The only thing you really need to work on is your constants (infinite use weapons). Ideally we don't want to use a shield for one of those slots because many of them don't have attack icons, which can make battling a slog. It's okay to use them as accessory weapons or for specific situations, though.

So what should you be using instead? When our pets are in the Tier 10 range or higher, generally we want to own a weapon for each element type so we can tailor our constants to the opponent we're trying to beat. Your Sierrac Basal Ice Flail, which defends against ice (:block🧊) and water (:block:water:), will work great for opponents that deal ice (:dmg🧊) or water (:dmg:water:) attacks, but that leaves seven other elements you should grab weapons for.

Weapons in the "cheap" category are going to be some of the more affordable options if you're not ready to spend a ton of sP yet. The "midrange" weapons are going to be pricier, but should serve you better during battles. The "endgame" weapons are the ones you'll want to eventually collect as you get into the end stages of battling like Tier 12 and 13. Those are generally the best in the game and will help you against the strongest opponents :D

also has a great guides here: Planning for the Endgame (T10+ Guide) OUT OF DATE and here: Thesoveigns Scroll Guide - Regardless of Tier. OUT OF DATE if you want to read up more on endgame weapons and scrolls. Though we just had a weapon revamp last year so some of the info may be a little out of date.

One other thing you should consider in the future is swapping out your Rainbow Vortex for Volatile Energized Mecha, which you can make from the different components in the Battle Shop (Battle shop components). It boosts your pet's stats during battle, heals your pet a little each turn, and provides a small curse and blessing for 100 turns. Generally it is more preferable for T11+ pets, who don't need to rely on full blockers as much anymore.

I hope that helps, but feel free to let me know if you have any additional questions :)

I got a good amount of SP in and managed to upgrade to a T11 build

[item2=soma tablets] [item2=recycle blaster] [item2=shinwas temple shard] [item2=Intricate Energized Helmet] [item2=Volatile Energized Mecha] [item2=Paintbrush Blades] [item2=Prodigys Eyeball]

As for scrolls I have [item2=Shriek of Despair Scroll] x5 [item2=cobalt eternal scroll] [item2=feather explosion scroll] [item2=Divine Denizhen scroll] [item2=Ocean Currents scroll]

Nice :D

I'd go with this for your default weapon set:

And this for your default scroll set: x5

Between Paintbrush Blades, Prodigys Eyeball, and Feather Explosion, you'll have some coverage for seven different elements (:block:dark::block🧊:block:light::block:magma::block:earth::block:water::block:physical:).

You really only need to use one infinite use scroll at a time, but you can switch them around based on your opponent. For instance, Ocean Currents defends against water (:dmg:water:) and ice (:dmg🧊) attacks, while Feather Explosion defends against physical (:dmg:physical:). That leaves you room for a few more scrolls. I'd probably pick up a few more freezers for the Gelly War right now, personally, but it's up to you! Morostide is also coming up next month, which means free Shrieks from Nightlady.

Perfect, I have all those items! Thank you so so much!