Dman and his dice roll combined with genie have let me beat every difficulty with ease.
Roller warrior, dungeon man, faith healer, golden genie, and I cant remember the last hero.
Dungeon man's dice is the real star as it can knockback vensuia across the screen. Genie and roller warrior help to keep vensuia pushed back. Faith healer keeps your team is alive, and I will have to check tomrw to see who the fifth hero is and why I have them. It may be burned one. But any other knockback/bashing hero can do the trick.