Derevi, Empyrial Tactician, The Golden Throne, Blessed Sanctuary, and Phyrexian Altar

Prerequisites

• Derevi, Empyrial Tactician on the battlefield
• The Golden Throne on the battlefield
• Blessed Sanctuary on the battlefield
• Phyrexian Altar on the battlefield
• available

Steps

1. Activate The Golden Throne by tapping it and sacrificing Derevi, adding
2. Choose to return Derevi to the command zone from your graveyard
3. Activate Derevi by paying , putting Derevi onto the battlefield from the command zone
4. When Derevi enters the battlefield, it and Blessed Sanctuary trigger
5. Resolve the Blessed Sanctuary trigger, creating a 2/2 Unicorn creature token
6. Resolve the Derevi trigger, untapping The Golden Throne
7. Activate Phyrexian Altar by sacrificing the Unicorn, adding
8. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers