Cleaving Skyrider 
Creature — Human Warrior
Flash
Kicker 
(You may pay an additional as you cast this spell.)
Flying
When this creature enters, if it was kicked, it deals X damage to any target, where X is the number of attacking creatures.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL