Found the page that they all seem to be on, if you want to have another look.

Yeah, and at 25 wins on Muffin Man, he gave me a mage amulet. So maybe 100 wins isn't farfetch'd for this lol

Maybe more like 50 wins? Or I guess it could be even up to 100 wins for some of them, since they seem to be mostly the Normal and Secret challengers, but not the Impossible level ones of those.

Well I'll let you know when i hit 50 then haha! not the opponent I thought I'd be beating up first.

You Won! You have defeated Slavam 15 times! You won a(n) Very Hard token to use in the battle shop! Slavam drops: You earned 564 sP for beating Slavam! Cambry earned 40 EXP Points!

Whoa ok I can get on board with that. Got a death potion on the 12th win, also.

K, at 50 wins on Muffin Man, got another mage amulet, so got to go longer at this for that scroll piece. I want it yo.

Do it, get to 100 :o Let us know :P

Okey-dokey! For science!

I defeated 2400 mini gelatins in one sitting this year, I can endure another seven hour battling streak to earn those scroll pieces!

... ... ...

Ugh.

Good luck Metroid. I believe you can do it!

From the Q&A thread about the special loot stuffs:

The loot never stops :D Special prizes are only given out after a specific number of wins, which vary by challenger (and not all challengers have them).

Got a Tome of Fire at 75 wins of Muffin Man. LOL

Piece at !

So it is at 100 then, that's what I was thinking. LOL, good one Laurey, you were right!

Could someone make a thread regarding the changes to the BC after this update? ^_^; Seems like a fair few things are different.. would love to know what all the new loot is..

Nooo, I meant you gotta get 100 and let us know for sure XDDD

You Won!

You have defeated Prodigy 35 times!

Prodigy drops:

You earned 1391 sP for beating Prodigy!

Just some info, there wasn't any special items on the 30th win either. It appears that 25 wins is the last big drop.

Oh, well I'll find out for certain then! almost there

You Won! You have defeated Fish Breath Jacques 15 times! Fish Breath Jacques drops: Tome of Water You earned 1258 sP for beating Fish Breath Jacques! Cambry earned 40 EXP Points!

So I guess no more amulets/tomes for random drops in the first ten wins, at least thst what it seems like so far. A lot less boosting :?

Buttwing had a mage amulet at win 100

Also a lot of challengers seem to have a tome at win 15

Swimming in mushroom earrings and earth crystals/potions against Phungis up to win 40.