Airean, Heir to Deceit

Double Strike, Lifelink
Airean enters with 5 flourish counters
(Remove a counter to use a flourish)
Defensive Flourish {t}, Creatures you control
gain +0/+3 until the end of turn.
Mobile Flourish {t}, Exile other target creature
you control then return at the next end step.
Slashing Flourish {x}{t}, Deal {x} damage
to target creature you don't control.