Elite Arcanist, and Nexus of Fate

Prerequisites

• Elite Arcanist on the battlefield
• Nexus of Fate in exile
• Elite Arcanist does not have summoning sickness
• each turn available

Steps

1. Activate Elite Arcanist by paying and tapping it, creating a copy of Nexus of Fate and casting it without paying it's mana cost to take an extra turn after this one
2. Repeat

Results

• Infinite turns