Abdel Adrian, Gorion's Ward | Phantom Steed | Glasspool Mimic // Glasspool Shore

Cards

Cast
Phantom Steed by paying ({3} magic symbol) ({U} magic symbol) .
When
Phantom Steed enters the battlefield, its first ability triggers, exiling
Abdel Adrian until
Phantom Steed leaves the battlefield.
Abdel Adrian leaves the battlefield, ending its effect, causing
Glasspool Mimic to return from exile to the battlefield as a copy of
Phantom Steed.
When
Glasspool Mimic enters the battlefield, its first ability triggers, exiling
Phantom Steed until
Glasspool Mimic leaves the battlefield.
Phantom Steed 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
Glasspool Mimic 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.
Glasspool Mimic leaves the battlefield, ending its effect, causing
Phantom Steed to return to the battlefield from exile.
Repeat from step 2.