Final Spark
Demacia -
Spell 
Fleeting:
Fleeting cards discard from hand when the round ends.
Slow:
Can be played outside of combat when no spells or skills are pending. Happens after your opponent has a chance to react.
Overwhelm:
Excess damage I deal to my blocker is dealt to the enemy Nexus.
"I've hidden my light for my whole life. What would happen if they knew... if *I* knew what I could really do?" - Lux