Ugdra, Tamer of Wilds

Monstrosity abilities of creatures you control cost {x} less to activate,where X is equal to Ugdra's
power.
Whenever a creature with monstrosity enters the battlefield under your control, put a +1/+1
counter on Ugdra, Tamer of Wilds, then
if Ugdra's power is 4 or greater put a +1/+1
counter on that creature.
"I can't wait to see the small ones grown."