Daru Spiritualist + Animal Boneyard + Outrider en-Kor

Daru Spiritualist

Animal Boneyard

Outrider en-Kor

How it works

1. Activate Outrider en-Kor by paying 0, targeting Daru Spiritualist.
2. Daru Spiritualist triggers, giving it +0/+2 until end of turn.
3. Repeat an arbitrarily large number of times.
4. Activate the land with Animal Boneyard attached by tapping it and sacrificing Daru Spiritualist, causing you to gain life equal to Daru Spiritualist's toughness.