Creature — Dinosaur
![](/symbols/10.svg)
![](/symbols/B.svg)
![](/symbols/G.svg)
: Monstrosity 10. This ability costs
![](/symbols/1.svg)
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 Grim Giganotosaurus becomes monstrous, destroy all artifacts and creatures other than Grim Giganotosaurus.