Yedora, Grave Gardener + Granite Witness + Skirk Alarmist + Extruder

Prerequisites

• Skirk Alarmist does not have summoning sickness.

Steps

1. 1Activate Extruder by sacrificing Granite Witness.
2. 2When Granite Witness dies, Yedora triggers, returning Granite Witness from your graveyard to the battlefield face-down as a Forest land.
3. 3Resolve the Extruder ability, putting a +1/+1 counter on a creature you control.
4. 4Activate Granite Witness by tapping it, adding .
5. 5Activate Skirk Alarmist by tapping it, turning Granite Witness face-up.
6. 6Granite Witness triggers, untapping Skirk Alarmist.
7. 7Repeat.

Effects

• Infinite +1/+1 counters on creatures you control
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite green mana
• Infinite landfall triggers