Jojax, Riteborn Titan

Reach, Trample.
{4}{g}{g}: Monstrosity 4 (If this permanent isn't monstrous, put 4 +1/+1 counters on it and it becomes monstrous.)
When Jojax, Riteborn Titan becomes
Monsterous you may destroy target mountain.
JOJAX WANT FIGHT!!!!