killing the corruptor is easy for a bio: shadow burn(max) , enrage(max) then withdraw(max) it should kill her really fast if you have high strength,instinct or speed
how to beat the last boss with out a pet: as any class always have lightning strike it only cost 6 mp and it will stun the enemy and you can just go behind him and attack him(make sure you have alot of health,antidote,mana potions) and if your lucky you can get extra stun from the attack you hit him with and then keep attacking him with high hitpoint attacks
should have a good story to it like a cut scene of a person that want the tree to grow and the tree wont then a seed fell and he caught it then the tree grew XD
 "Adventure Story")
 "Bloons Tower Defense 4")
 "Coinbox Hero"){kind=icon}
 "Treadmillasaurus Rex")
 "Sonny 2")
 "The Space Game: Missions")
 "Neon Race")
 "Warlands")
 "Super Crazy Guitar Maniac Deluxe 3")
 "Castaway 2")
 "Dude and Zombies")
 "Shield Defense")
 "Ultimate Assassin 3")
 "Warlords 2: Rise of Demons")
 "The V-evolution")
 "...and it grew")
It's in the game!