Umbral Smoke
Demacia -
Ability 
Skill:
A unit's spell-like effect that allows enemy reactions.
Slow:
Can be played outside of combat when no spells or skills are pending. Happens after your opponent has a chance to react.
Capture:
A Captured card is removed from the game. It returns when the Capturing unit leaves play.
"Is a little shade like that supposed to frighten me?" - Lux: Illuminated