Sister Hospitaller, Viscera Seer, and Hostage Taker

Prerequisites

• Sister Hospitaller in hand
• Viscera Seer on the battlefield
• Hostage Taker in the graveyard
• available

Steps

1. Cast Sister Hospitaller by paying
2. When Sister Hospitaller enters, it triggers, returning Hostage Taker from your graveyard to the battlefield and causing you to gain life equal to its mana value
3. When Hostage Taker enters, it triggers, exiling Sister Hospitaller until Hostage Taker leaves the battlefield
4. Activate Viscera Seer by sacrificing Hostage Taker
5. When Hostage Taker leaves the battlefield, Sister Hospitaller is returned from exile to the battlefield
6. Repeat from step 2
7. Resolve all Viscera Seer abilities

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite scry 1
• Infinite lifegain triggers
• Infinite lifegain