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This spell costs less to cast for each creature your opponents control.
When Primeval Protector enters the battlefield, put a +1/+1 counter on each other creature you control.
Primeval Protectorâ€™s ability canâ€™t reduce its cost below .
Once a player has announced that they are casting Primeval Protector, no player may take actions to try to change the number of creatures your opponents control in order to increase its cost.