Rakdos Joins Up, Starfield of Nyx, and Mirror Image

Prerequisites

• Rakdos Joins Up on the battlefield
• Starfield of Nyx on the battlefield
• Mirror Image on the battlefield

Steps

1. Cast Mirror Image by paying its mana cost
2. Choose to have it enter the battlefield as a copy of Rakdos Joins Up
3. Put Mirror Image into your graveyard due to the legend rule
4. Mirror Image's first ability and second ability trigger, along with Rakdos Joins Up's second ability
5. Resolve Mirror Image's second trigger and Rakdos Joins Up's trigger, dealing damage to target opponent
6. Resolve Mirror Image's first trigger, returning it from your graveyard to the battlefield with two +1/+1 counters on it as a copy of Rakdos Joins Up
7. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite death triggers
• Infinite damage