Ingrot the Cruel

Fealty (as you cast this card and during each upkeep,
any player may have any number of creatures they
control swear fealty to it by tapping them.)
{2}{r}: Ingrot deals 3 damage to target creature
that didnt swear fealty to it this turn.
{1}{r}: Untap target creature you control that
swore fealty to Ingrot this turn. It gets +3+0
until end of turn. Sacrifice it at the beginning of
the next end step.