Daru Spiritualist, Warrior en-Kor, and Starlit Sanctum

Prerequisites

• Daru Spiritualist on the battlefield
• Warrior en-Kor on the battlefield
• Starlit Sanctum on the battlefield
• available

Steps

1. Activate Warrior en-Kor by paying , targeting Daru Spiritualist
2. Daru Spiritualist triggers, causing itself to get +0/+2 until end of turn
3. Resolve the Warrior en-Kor ability, causing the next one damage dealt to Warrior en-Kor this turn to be dealt to Daru Spiritualist instead
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

Results

• Infinite lifegain