Originally Posted by CursedScar
The potential Bosses as I have seen so far,
Is Daru from Coc2. (Prince of Chaos)
The Unicorn Lion from Coc2 (Merdia or something, name was hard to remember)
and Nergal from Coc2 (It's just Nergal)
They're attacks are identical and I believe Hp and Damage to. (Scaled to 4 instead of 10 people though assuming you have a full pt.)
+The tree from part 2. Though its hp and damage is significantly lower compared to its island 2 counterpart.