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

Cards

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

Infinite LTB.
Infinite ETB.
Infinite creature tokens.
Infinite landfall triggers.
Infinite blinking of permanents you control.
Infinite mana lands you control that enter the battlefield untapped can produce.
Exile any number of nonland permanents.