Weaver of the Swarm

When Weaver of the Swarm enters the battlefield, create a 1/1 colorless eldrazi scion creature token with: Sacrifice this creature: Add {c}.
Whenever Weaver of the Swarm attacks, create X 1/1 colorless eldrazi scion creature tokens with: Sacrifice this creature: Add {c}, where X is one plus the number of scions created with Weaver of the Swarm.
"There's the mom!" Munda, last words.