Justiciar's Portal, and Naru Meha, Master Wizard

Prerequisites

• Justiciar's Portal in hand
• Naru Meha, Master Wizard in hand
• You control at least one creature
• available

Steps

1. Cast Justiciar's Portal by paying , targeting any creature you control
2. Holding priority, cast Naru Meha by paying
3. Naru Meha enters the battlefield, creating a copy of Justiciar's Portal targeting Naru Meha
4. Resolve the copy of Justiciar's Portal, blinking Naru Meha
5. Repeat from step 3

Results

• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers