mask of the weaver

equipped creature gains X +1/+1 counters and: summon X weaverlings where X is the number of +1/+1 counters on this card at the beginning of your upkeep, you may pay {1} if you do summon a weaverling, this card gains +X/+X where X is the number of weaverling tokens you control.
equip this card to a creature as you play it