Fertilid + Tiller Engine + Nissa, Resurgent Animist + Roaring Earth

Fertilid

Tiller Engine

Nissa, Resurgent Animist

Roaring Earth

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 Tiller Engine.
2. When the basic land enters, Tiller Engine, Nissa and Roaring Earth trigger.
3. Resolve the Tiller Engine trigger, untapping the basic land.
4. Resolve the Nissa trigger, adding .
5. Resolve the Roaring Earth trigger, putting a +1/+1 counter on Fertilid.
6. Activate the basic land by tapping it, adding 1.
7. Repeat.