At the beginning of your upkeep, put a spore counter on Utopia Mycon. Remove three spore counters from Utopia Mycon: Create a 1/1 green Saproling creature token. Sacrifice a Saproling: Add one mana of any color.
Whenever a Forest enters the battlefield, green creatures you control get +1/+1 and gain trample until end of turn. Grandeur — Discard another card named Baru, Fist of Krosa: Create an X/X green Wurm creature token, where X is the number of lands you control.
Nacatl War-Pride must be blocked by exactly one creature if able. Whenever Nacatl War-Pride attacks, create X tokens that are copies of Nacatl War-Pride and that are tapped and attacking, where X is the number of creatures defending player controls. Exile the tokens at the beginning of the next end step.