Acorn Reclamation

When Acorn Reclamation comes into play or at the beginning of your upkeep, each opponent gets a nut counter.
Whenever a squirrel you control deals combat damage to an opponent, remove a nut counter from that opponent. For each nut counter removed this way, choose one: create two 1/1 green squirrel creature tokens, or put a +1/+1 counter on each squirrel you control.