Mako, Alight

When Mako, Alight enters the battlefield, put a
-1/-1 counter on each creature your opponents
control.
Whenever a creature with -1/-1 counters on it
dies, put that many +1/+1 counters on Mako,
Alight.
{t}, {x}{x}{r}: Put X -1/-1 counters on target
creature.