Nyxys, Heart of Theros

Bestow {3}{u}{u}{g}
{u}{g}: Monstrosity 1
Enchanted creature has "{u}{g}: monstrosity 1" , and +1/+2
As long as Nyxys or enchanted creature are monstrous, whenever you cast a spell that targets them, put X +1/+1 counters on them, where X is your devotion to that creatures colors.