Heroes' Bane's ability by paying ({2} magic symbol) ({G} magic symbol) ({G} magic symbol) , putting at least five +1/+1 counters on it.
Activate
Necrotic Ooze using
Crystalline Crawler's first ability four times by removing four +1/+1 counters from it, adding ({2} magic symbol) ({G} magic symbol) ({G} magic symbol) .