When Lumbering Battlement enters the battlefield, it triggers, exiling Abdel Adrian until Lumbering Battlement leaves the battlefield.
Abdel Adrian leaves the battlefield, ending its effect, causing Journey to Nowhere to return from exile to the battlefield.
When Journey to Nowhere enters the battlefield, its first ability triggers, exiling Lumbering Battlement.
Lumbering Battlement leaves the battlefield, ending its effect, causing Abdel Adrian to return from exile to the battlefield.
When Abdel Adrian enters the battlefield, it triggers, exiling Journey to Nowhere and any number of other nonland permanents you control until Abdel Adrian leaves the battlefield and creating at least one 1/1 Soldier creature token.
When Journey to Nowhere leaves the battlefield, its second ability triggers, returning Lumbering Battlement to the battlefield from exile.
Repeat from step 2.
Results
Infinite blinking of nonland permanents you control.