Straggle, the Mobility Meta

Alright so I don't have lore or concrete numbers but this is just a kit idea.

Style: Ranged AP mid/support that is focused on getting picks and punishing poor positioning. Character wise I was thinking of this champ as a sadist/blood cult guy using demonic magic

Passive (toxic blood): Whenever you take damage or activate an ability you get a sun fire stack (max 6 stacks) you deal passive AOE damage for each stack. Basically cinder hulk

Q (dark portal): Circular skill shot (like swain's nevermove) that after a brief delay damages and teleports all enemies caught to your current position. Basically a strange AOE blitz pull

W (sanguine step): Short range blink (kassadin) that heals you and any allies around you at the end of the blink. Longish CD but holds 2 stacks so you can burst longer distances

E (Stale Blood) You put a mark over an enemies head (point and click). The marked enemy takes damage based on how far they move while marked. So it punishes highly mobile champs and can also be used with forced movement (like your Q)

R (Unleash Hatered) Become briefly invulnerable then release large AOE damage and knock back (like a Janna ult but with damage). Use this to doc in and split the enemy team apart or as a handy escape/dueling tool.

As you can see, lots of synergy in the kit, it's something I'd have a lot of fun playing, maybe it's OP idk. Please give feed back :)