Toph, the First Metalbender + Retreat to Emeria + Haru, Hidden Talent + Heart of Ramos

Prerequisites

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Steps

1. 1Cast Heart of Ramos by paying its mana cost.
2. 2When Heart of Ramos enters, Retreat to Emeria triggers, creating a 1/1 Kor Ally creature token.
3. 3When the Kor Ally enters, Haru triggers, earthbending Heart of Ramos.
4. 4Activate Heart of Ramos by sacrificing it.
5. 5Haru triggers, returning Heart of Ramos from your graveyard to the battlefield.
6. 6Repeat from step 2.

Effects

• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite creature ETB
• Infinite creature tokens
• Infinite landfall triggers
• Infinite red mana