Storm of Souls, Phantom Train, and Dualcaster Mage

Prerequisites

• Storm of Souls in hand
• Phantom Train on the battlefield
• Dualcaster Mage in hand
• available

Steps

1. Cast Storm of Souls by paying its mana cost Holding priority, cast Dualcaster Mage by paying its mana cost
2. When Dualcaster Mage enters, it triggers, targeting Storm of Souls
3. Holding priority, activate Phantom Train by sacrificing Dualcaster Mage
4. Resolve the Dualcaster Mage trigger, copying Storm of Souls Resolve the Storm of Souls copy, returning Dualcaster Mage from your graveyard to the battlefield
5. Repeat from step 3

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite magecraft triggers
• Infinite +1/+1 counters on a creature
• Infinite recursion of creature cards in your graveyard