Centh, Shambling Horror

Evolve
Graft 5
{5}{u}{u}{g}{g}: Monstrosity 5. (If this creature
isn't monstrous, put five +1/+1 counters on it
and it becomes monstrous.)
As long as Centh, Shambling Horror is monstrous, it has trample and Scurrier biomechanics.