Sydri, Galvanic Genius, Salvaging Station, and Seat of the Synod

Prerequisites

• Sydri, Galvanic Genius on the battlefield
• Salvaging Station on the battlefield
• Seat of the Synod on the battlefield

Steps

1. Activate Seat of the Synod by tapping it, adding
2. Activate Sydri by paying , causing Seat of the Synod to become a creature until end of turn
3. Seat of the Synod dies as a state-based action due to having 0 toughness, triggering Salvaging Station, untapping Salvaging Station
4. Activate Salvaging Station by tapping it, returning Seat of the Synod from your graveyard to the battlefield
5. Repeat

Results

• Infinite LTB
• Infinite death triggers
• Infinite landfall triggers