Cult Supremacy

When Cult Supremacy enters the battlefield, put
a +1/+1 counter on any number of target
creatures. Creatures with +1/+1 counters on
them can't block for as long as Cult Supremacy
remains on the battlefield.
Whenever a black or red creature you control
deals damage to a player, if that player has more
cards in hand than you, you may pay {b/r}. If you
do, that player discards cards until they have the
same number of cards in hand as you.