Daru Spiritualist + Starlit Sanctum + Umbral Mantle

Daru Spiritualist

Starlit Sanctum

Umbral Mantle

How it works

1. Activate Umbral Mantle's equip ability by paying 0, targeting Daru Spiritualist.
2. Daru Spiritualist triggers, causing itself to get +0/+2 until end of turn.
3. Resolve the Umbral Mantle ability.
4. Repeat an arbitrarily large number of times.
5. Activate Starlit Sanctum's second ability by paying , tapping it and sacrificing Daru Spiritualist, causing you to gain life equal to Daru Spiritualist's toughness.