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

RGWU identity

Commander legal

The 4 combo pieces

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

What must be in place

Skirk Alarmist does not have summoning sickness.

How to execute it

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

What the combo produces

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