We’ve got a lot of themes in Dota already. Gods, demons, dwarves, elementals, forest dwellers, goblins, etc.
I’d like to see a chaos themed hero. By which I mean chaos theory, fractals, butterfly effect, etc.
What other concepts are people still unexplored and sound interesting?
Support with 3 buffs and ulti as buff amplifier of some sort. There is really no true “buffer” in dota2.