True Pacifism

This spell can’t be destroyed or exiled except by sacrificing it.
Creatures and spells you control can’t deal damage to players or permanents they control.
{0}: Sacrifice True Pacifism.
At the beginning of your end step, if you control five or more creatures with a total of at least three different creature types and three different colors among them, transform True Pacifism.
“I have heard you are quite merciful, for a human.” —Froggit