Kennen, Keeper of Balance (135/166) - Vendetta Foil

Yordle;Ionia;Kennen

[HIDDEN] (Hide now for Rune to react with later for 0.)
When you play me or I attack, you may pay 2 to [Stun] a unit. (It doesn't deal combat damage this turn.)
While there's a stunned enemy unit here, I have +2 Might.