Sets like Captain Crimson Aughilds would be cool.
I hope they don’t do what D3 did though.
“Want to play Whirlwind? You must use the Wastes set!”
They’ve done that to a degree already though if we’re being honest. There’s several Whirlwind specific Aspects that combine to make what is essentially a set.
They really need to revamp items and skills in this game. So many Aspects should just be passives or baked into the skill tree.