Grawvon, Dark Enchanter

Creatures with enslave counters on them are
controlled by you and have "At the beginning of
your upkeep, put an abuse counter on this
creature. Then put a number of -1/-1 counters
on it equal to the number of abuse counters on it."
{u/b}{p/b}{p/u},{t}: Put an enslave counter on
target creature.
{x}{x}: Remove a total of X abuse counters from
up to to three creatures.