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At the beginning of your upkeep, you may create a 1/1 green Squirrel creature token.
Threshold — Squirrel creatures get +2/+2 as long as seven or more cards are in your graveyard.
Because damage remains marked on a creature until the damage is removed as the turn ends, nonlethal damage dealt to Squirrels may become lethal if the number of cards in your graveyard falls below seven.
