Reap and Sow

When Reap and Sow enters the battlefield attach
it to target creature you control
When a creature equipped with Reap and Sow
deals damageto a creature, put a -1/-1 counter
on that creature. When a creature equipped
with Reap and Sow dies, each player sacrifices
all creatures with a -1/-1 counter on it.
{4}: Equip