Grim Giganotosaurus (Jurassic World Collection 11) - Rare

: Monstrosity 10. This ability costs less to activate for each creature with power 4 or greater your opponents control. (If this creature isn't monstrous, put ten +1/+1 counters on it and it becomes monstrous.)
When this creature becomes monstrous, destroy all artifacts and creatures other than this creature.