You have any number of other nonland permanents that enter the battlefield untapped, and that can collectively tap to produce enough mana to cast Splash Portal exiled by Abdel Adrian.
Salvager of Secrets exiled by Abdel Adrian.
You have enough mana to cast Splash Portal.
Steps
Cast Splash Portal by paying its mana cost, blinking Abdel Adrian.
Abdel Adrian leaves the battlefield, returning Salvager of Secrets and all other cards that were exiled with it to the battlefield.
Abdel Adrian and Salvager of Secrets trigger.
Resolve the Salvager of Secrets trigger, returning Splash 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 Splash Portal.
Resolve the Abdel Adrian trigger, exiling Salvager of Secrets 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.
Results
Infinite LTB.
Infinite ETB.
Infinite storm count.
Infinite creature tokens.
Infinite blinking of nonland permanents you control.