nice :D, beat cave 5 before all others thanks to this thread: here are the must haves to beat Cave 5.Spells:Athena, Phoenix, Hercules, Comet and Healing spell. Troops: Centaurs, Succubus, Mermaids, Witches, goblins and the black knight keep this commnet alive by copy pasting it but since I had Grullborg Grimtooth I had enough mana to replace goblins and black knights by frost giant and dragon rider + i had the lightning bolt card extra it worked out just fine^^just another tip: the heroes don't have the same amount of maximum Mana! Grullborg Grimtooth has 3500 mana at lvl 30, which is very much, viegraff the red on the other hand doesn't even have 3000 mana at lvl 30. attempting the caves of trial is best to do with heroes