Krosan Druid 
Creature — Centaur Druid
Kicker 
(You may pay an additional as you cast this spell.)
When this creature enters, if it was kicked, you gain 10 life.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL