Grim Giganotosaurus
Creature - Dinosaur
| Power/Toughness:
10 / 10
(CMC 7)
: 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 Grim Giganotosaurus becomes monstrous, destroy all artifacts and creatures other than Grim Giganotosaurus.