Settle Beyond Reality, and Dualcaster Mage

Prerequisites

• Settle Beyond Reality in hand
• Dualcaster Mage in hand
• available

Steps

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

Results

• Exile any number of target creatures your opponents control
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers