Dodgeball Draven , Garnet Vi, and others.

A vi skin Reminiscent of Garnet from Steven Universe.(Let's call it Celestial Vi? Crystallin Vi?) Ult/taunt="Why are you such a butt face" (You'd have to watch the show.)

A Shredder (TMNT) Zed Skin. we already have a NInja rammus, c'mon man. Special Interactions with that skin.

Pearl Kalista (Steven Universe)

Demonblade Yasuo , styled as Ichigo when his hollow takes control. Whirlwind could be a Getsuga instead. When performing his E, You'd see him blur(Sonido) instead of slide.

Yu Gi Oh Twisted Fate. Ult could have an egyptian-esque music play."Believe in The Heart of The Cards!""It's My Turn" When ulting "YOU'VE ACTIVATED MY TRAP CARD"

Dodgeball Draven. Do I even have to explain this one?

Pizza Delivery Draven. "This one's on the house!" "What, no tip?" "ORDER UP!" "No Refunds" " It's not Delivery, It's Draaaaaaaaveeennn"

Underworld Zed. Shadows= Spirits. I'm thinking a Black/Green thing going on with his costume. When ult is casted, some safe variation of a ritual sign could appear instead the standard X. When The Ult goes off you could have ghost skull appear on the target, Replacing the Blood splatter sound effect with something like a ghastly gasp(Think Vladimir).