Zac, the Secret Weapon

When Zac, the Secret Weapon enters the
graveyard, put 4, 0/1 bloblets onto the
battlefield.
During your next upkeep if any bloblets remain
on the battlefield Zac, the Secret Weapon comes
back into play and each bloblet is sacrificed. Each
bloblet sacrificed this way gives Zac, the Secret
Weapon a +2/+2 counter.
"I was made for this... literally."