Cast Siren's Ruse by paying its mana cost, blinking Abdel Adrian.
Abdel Adrian leaves the battlefield, returning Mnemonic Wall and all other cards that were exiled with it to the battlefield.
Abdel Adrian and Mnemonic Wall trigger.
Resolve the Mnemonic Wall trigger, returning Siren's Ruse 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 Siren's Ruse.
Resolve the Abdel Adrian trigger, exiling Mnemonic Wall 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 clever loop hinges on Abdel Adrian, Gorion's Ward bouncing back and forth to consume and release your board, fueled by Siren's Ruse to keep the cycle going. Every time Abdel Adrian re-enters the battlefield, he exiles Mnemonic Wall alongside your mana-producing permanents, which instantly triggers Mnemonic Wall to scoop Siren's Ruse right back out of your graveyard and into your hand. This continuous dance not only floods the board with an endless army of 1/1 Soldier creature tokens, but also lets you endlessly tap your mana sources between triggers to generate infinite storm count, magecraft triggers, and blinking of nonland permanents.