Junji, the Midnight Sky, Phantom Train, Bastion of Remembrance, and Karmic Guide

Prerequisites

• Junji, the Midnight Sky on the battlefield
• Phantom Train on the battlefield
• Bastion of Remembrance on the battlefield
• Karmic Guide on the battlefield

Steps

1. Activate Phantom Train by sacrificing Karmic Guide
2. When Karmic Guide dies, Bastion of Remembrance triggers, causing you to gain 1 life and each opponent to lose 1 life
3. Resolve the Phantom Train ability
4. Activate Phantom Train by sacrificing Junji
5. When Junji dies, it and Bastion of Remembrance trigger
6. Resolve the Bastion of Remembrance trigger, causing you to gain 1 life and each opponent to lose 1 life
7. Resolve the Junji trigger, returning Karmic Guide from your graveyard to the battlefield and causing you to lose 2 life
8. When Karmic Guide enters, it triggers, returning Junji from your graveyard to the battlefield
9. Resolve the Phantom Train ability
10. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite lifeloss
• Infinite +1/+1 counters on a creature