
Other Plants and Treefolk you control get +2/+0.
At the beginning of each of your postcombat main phases, return target Plant, Treefolk, or land card from your graveyard to your hand.
Build a Plant/Treefolk tribal go-wide or beatdown deck where Kirri's +2/+0 anthem turns small bodies into real threats, while the postcombat recursion engine grinds out repeatable value by returning Plants, Treefolk, and lands from your graveyard every turn. You ramp hard with Druids and land-fetch, flood the board with creatures and tokens, then attack into overwhelming pumped boards or fling lands/saprolings into a combo finish.
Lean into token doublers (Doubling Season, Parallel Lives, Anointed Procession) and Saproline engines (Tendershoot Dryad, Slimefoot) so the anthem snowballs faster, and add protection like Heroic Intervention and Boros Charm to shield the board from sweepers since +2/+0 gives no toughness. Tighten the ramp suite with Druids and land-fetch (Cultivate, Three Visits) to deploy Kirri ahead of schedule, and add landfall or land-loop payoffs (Scute Swarm, Splendid Reclamation) to exploit her recursion for explosive turns.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
→ Infinite combat phases, Infinite green mana, Infinite magecraft triggers
→ Infinite combat phases, Infinite green mana, Infinite magecraft triggers
→ Infinite colored mana that can only be spent to cast spells, Infinite combat phases, Infinite magecraft triggers
Combos via Commander Spellbook.
Same color identity (GRW), by popularity.