This clever loop turns Ant Queen into a self-sustaining mana-positive engine by leveraging the token-doubling replacement effect of Bard, King of Dale. Because Jaheira, Friend of the Forest grants every token the ability to tap for green mana, the doubled Insect tokens pay for the Queen's activation cost and then some, letting you repeat the process to generate an army. Meanwhile, Fires of Yavimaya gives your massive swarm haste right out of the gate, ensuring this infinite creature and entry-into-the-battlefield setup can immediately pressure your opponents.