I have a party of 3 lvl 11 tier 4 mythic characters in my game. One life oracle, one dd barbarian and one fighter archer. They have a host of np a following them all 10+ mostly melee but 1 druid and 1 sorcerer.
The fighters father got possessed and I have him in my head. The possessing entity is like a shadow god with abilities between a ninja and a shadowdancer. The character is gonna be an archer fighter with the tactician archetype.
He is gonna have a couple mythic shadows and a necromancer helping him assault the PC group.
I have an idea of him being able to cast shadow summoning to break off shade clones of him that each do damage... Will save..20%. Then he can teleport between them as a swift action.
The pcs have blown threw most of what I've created. I am ok if some in the PC group die as they can be resurrected.