Preston, the Vanisher + Felidar Guardian + Justiciar's Portal

Prerequisites

• You have enough mana to cast Justiciar's Portal.

Steps

1. 1Cast Justiciar's Portal by paying its mana cost, blinking Felidar Guardian.
2. 2Felidar Guardian and Preston trigger.
3. 3Resolve the Felidar Guardian trigger, blinking another permanent you control.
4. 4Resolve the Preston trigger, creating a token copy of Felidar Guardian that is a 0/1 Illusion.
5. 5When the Felidar Guardian token enters the battlefield, it triggers, blinking the nontoken Felidar Guardian.
6. 6Repeat from step 2.

Effects

• Exile all nonland permanents opponents control
• Infinite blinking of permanents
• Infinite creature tokens
• Infinite ETB
• Infinite landfall triggers
• Infinite LTB
• Infinite mana lands you control can produce
• Infinite mana lands you control that enter the battlefield untapped can produce