Dualcaster Mage, and Skycoach Conductor // All Aboard

Prerequisites

• Dualcaster Mage in hand
• Skycoach Conductor // All Aboard on the battlefield
• available

Steps

1. Cast All Aboard by paying its mana cost
2. Holding priority, cast Dualcaster Mage by paying its mana cost
3. When Dualcaster Mage enters, it triggers, copying All Aboard, with the copy targeting Dualcaster Mage
4. Resolve the copy of All Aboard, blinking Dualcaster Mage
5. Repeat from step 3

Results

• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers