MTG >Combos >Training Grounds +Mirage Mirror +Soulbright Flamekin +

With all three cards in play, activate Soulbright Flamekin's ability and add 8 red mana. Activate Mirage Mirror to copy itself. Retain priority and activate Mirage Mirror again, copying Soulbright Flamekin again. Let the first copy resolve and Mirage Mirror will become a copy of Soulbright Flamekin With the second copy on the stack, activate the Soulbright Flamekin copy's ability 3 times to add 8 red mana. Let the second copy resolve, Mirage Mirror will become an artifact again. Repeat the process for infinite mana