Cast Justiciar's Portal by paying its mana cost, blinking Abdel Adrian.
Abdel Adrian leaves the battlefield, returning Pinnacle Monk and all other cards that were exiled with it to the battlefield.
Abdel Adrian and Pinnacle Monk trigger.
Resolve the Pinnacle Monk trigger, returning Justiciar's Portal from your graveyard to your hand.
Holding priority, activate any number of nonland permanents you control by tapping them, adding at least enough mana to cast Justiciar's Portal.
Resolve the Abdel Adrian trigger, exiling Pinnacle Monk and the mana-producing permanents until Abdel Adrian leaves the battlefield, and creating a 1/1 Soldier creature token for each permanent exiled this way.
Repeat.
This elegant engine transforms a simple blink into an infinite recursion by using Abdel Adrian, Gorion's Ward to repeatedly sweep your board and rebuild it anew. When Justiciar's Portal flickers Abdel Adrian, the resulting state triggers Pinnacle Monk to recur that very same instant from your graveyard back to your hand. Meanwhile, Abdel Adrian's enter-the-battlefield trigger swallows up your mana-producing permanents and Pinnacle Monk itself, turning them into a massive army of Soldier tokens while resetting everything so you can replay Justiciar's Portal all over again.