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

Yedora, Grave Gardener

Granite Witness

Skirk Alarmist

Extruder

How it works

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 .
5. Activate Skirk Alarmist by tapping it, turning Granite Witness face-up.
6. Granite Witness triggers, untapping Skirk Alarmist.
7. Repeat.