The Naughty List

Whenever an opponent targets you or a creature you control with a spell or deals
damage to you or a creature you control, they get a Naughty List counter, if they have any Nice List counters remove one.

If a player has any number of Naughty List counters, all presents they control become coal tokens instead.

Creatures you control get +1/+1 for each Naughty List counter among your opponents.