Yedora, Grave Gardener + Granite Witness + Skirk Alarmist + Ashnod's Altar

Prerequisites

• Skirk Alarmist does not have summoning sickness.

Steps

1. 1Activate Ashnod's Altar by sacrificing Granite Witness, adding .
2. 2When Granite Witness dies, Yedora triggers, returning Granite Witness from your graveyard to the battlefield face-down as a Forest land.
3. 3Activate Granite Witness by tapping it, adding .
4. 4Activate Skirk Alarmist by tapping it, turning Granite Witness face-up.
5. 5Granite Witness triggers, untapping Skirk Alarmist.
6. 6Repeat.

Effects

• Infinite colorless mana
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite green mana
• Infinite landfall triggers