Chun Li, Kung Fu Justice

Multikicker {2} (You may pay an additional
{2} any number of times as you cast this spell.)
When Chun Li, Kung Fu Justice enters the
battlefield, put X +1/+1 counters on it and you
may exile a creature with converted mana cost
X+1 or less until Chun Li, Kung Fu Justice
leaves the battlefield, where X is the number of
times Chun Li, Kung Fu Justice was kicked.
Double strike