
You can't get poison counters.
Creatures you control can't have -1/-1 counters put on them.
Creatures your opponents control lose infect.
Melira is a combo enabler: she stops -1/-1 counters from landing on your creatures, which turns Persist and Undying creatures into infinite loops with a free sacrifice outlet. Ramp into Melira, assemble a Persist creature plus a sac outlet, and either drain the table or generate infinite tokens/mana, while also hosing infect strategies along the way.
Add fast green ramp (Birds of Paradise, Llanowar Elves, Sol Ring) and tutors like Worldly Tutor, Green Sun's Zenith, and Chord of Calling to find Melira and combo pieces reliably. Include redundant sac outlets and counter-preventers (Vizier of Remedies, Carrion Feeder) so the combo survives disruption, and consider a light splash into black or white for Blood Artist effects and better removal to truly maximize the engine.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
No combos found for this commander on Commander Spellbook.
Same color identity (G), by popularity.