Razaketh, the Foulblooded, Nexus of Fate, Ophiomancer, and Palace Siege

Prerequisites

• Razaketh, the Foulblooded on the battlefield
• Nexus of Fate in hand
• Ophiomancer on the battlefield
• Palace Siege on the battlefield
• "Dragons" chosen with Palace Siege
• You control no Snakes
• each turn available

Steps

1. At the beginning of your upkeep, Palace Siege and Ophiomancer trigger
2. Resolve the Palace Siege trigger, causing each opponent to lose 2 life and you to gain two life
3. Resolve the Ophiomancer trigger, creating a 1/1 Snake creature token
4. Activate Razaketh by paying 2 life and sacrificing the Snake token, searching your library for Nexus of Fate and putting it into your hand
5. Cast Nexus of Fate by paying , causing you to take an extra turn after this one and shuflle Nexus of Fate into your library
6. Repeat each turn

Results

• Infinite turns