Fertilid + Amulet of Vigor + Nissa, Resurgent Animist + Beorn's Hospitality

Fertilid

Amulet of Vigor

Nissa, Resurgent Animist

Beorn's Hospitality

How it works

1. Activate Fertilid by paying 1 and removing a +1/+1 counter from it, causing you to search your library for a basic land card and put it on the battlefield untapped due to Amulet of Vigor.
2. When the basic land enters, Amulet of Vigor, Nissa and Beorn's Hospitality trigger.
3. Resolve the Amulet of Vigor trigger, untapping the basic land.
4. Resolve the Nissa trigger, adding .
5. Resolve the Beorn's Hospitality trigger, putting a +1/+1 counter on Fertilid.
6. Activate the basic land by tapping it, adding 1.
7. Repeat.