The builds are truly unlimited. You can even level up to add more abilities than the base 5!
A few builds to get you started:
Melee Brawler
Type: Melee
Stats: 5 in HP, 5 in Damage
Abilities: Health Up passive, Damage up passive, Counter Attack passive, Lock up passive, Dash active
Glass Cannon
Type: Range
Stats: all in damage
Abilities: Damage Up passive, Move Up passive, Range Up passive, Fireball active, Teleport active
Witch Doctor
Type: Support
Stats: 1 in Move, 1 in Speed, rest in HP
Abilities: Health up passive, Curse active, Regen Other active, Poison active, Silence active
Berserker
Type: Melee
Stats: 1 in movement, rest in damage
Abilities: Health Up passive, Damage Up passive, Berserker passive, Berserk active, Power Attack active
The Wall
Type: Utility
Stats: all in HP
Abilities: Health Up passive, Lock Up passive, Regen passive, Defense Up passive, Pull active
...infinite others.
Name a character type! Let's make sure you can play it in the game if you want!