Blasting Station, Felidar Guardian, and Sister Hospitaller

Prerequisites

• Blasting Station on the battlefield
• Felidar Guardian in hand
• Sister Hospitaller on the battlefield
• available

Steps

1. Cast Felidar Guardian by paying its mana cost
2. When Felidar Guardian enters the battlefield, it and Blasting Station trigger
3. Holding priority, activate Blasting Station by tapping it and sacrificing Felidar Guardian
4. Resolve the Blasting Station trigger, untapping it
5. Resolve the Felidar Guardian ability, blinking Sister Hospitaller When Sister Hospitaller enters, it triggers, returning Felidar Guardian from your graveyard to the battlefield and causing you to gain 4 life
6. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite damage
• Infinite lifegain triggers
• Infinite lifegain