Kunseto, King's Justice

Vigilance, Lifelink.
At the beginning of your upkeep if an opponent
controls more creatures than you, you may
destroy target creature with power 4 or greater
that player controls.
{t}: Kunseto, King's Justice deals damage to target
creature equal to that creature power. Activate
this ability only any time you could cast a sorcery.
I have enough justice for everyone.