Cast Touch the Spirit Realm by paying {2}{W}.
When Touch the Spirit Realm enters the battlefield, it triggers, exiling itself until it leaves the battlefield.
When Touch the Spirit Realm leaves the battlefield, it returns itself from exile to the battlefield.
Repeat from step 2.

Infinite LTB

Infinite ETB

Touch the Spirit Realm

Starfield of Nyx

Cast Glorious Protector by paying {2}{W}{W}.
When Glorious Protector enters the battlefield, it triggers, exiling Abdel Adrian until Glorious Protector leaves the battlefield.
Abdel Adrian leaves the battlefield, ending its effect, causing Touch the Spirit Realm to return from exile to the battlefield.
When Touch the Spirit Realm enters the battlefield, it triggers, exiling Glorious Protector until Touch the Spirit Realm leaves the battlefield.
When Glorious Protector leaves the battlefield, Abdel Adrian returns from exile to the battlefield.
When Abdel Adrian enters the battlefield, it triggers, exiling Touch the Spirit Realm 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.
Touch the Spirit Realm leaves the battlefield, ending its effect, causing Glorious Protector to return to the battlefield from exile.
Repeat from step 2.

Infinite blinking of nonland permanents

Infinite creature tokens

Abdel Adrian, Gorion's Ward

Glorious Protector

Cast Touch the Spirit Realm by paying {2}{W}.
When Touch the Spirit Realm enters the battlefield, it triggers, exiling Abdel Adrian until Touch the Spirit Realm leaves the battlefield.
Abdel Adrian leaves the battlefield, ending its effect, causing Leonin Relic-Warder to return from exile to the battlefield.
When Leonin Relic-Warder enters the battlefield, its first ability triggers, exiling Touch the Spirit Realm.
Touch the Spirit Realm 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 Leonin Relic-Warder 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 Leonin Relic-Warder leaves the battlefield, its second ability triggers, returning Touch the Spirit Realm to the battlefield from exile.
Repeat from step 2.

Leonin Relic-Warder

Cast Touch the Spirit Realm by paying {2}{W}.
When Touch the Spirit Realm enters the battlefield, it triggers, exiling Abdel Adrian until Touch the Spirit Realm leaves the battlefield.
Abdel Adrian leaves the battlefield, ending its effect, causing Oblivion Ring to return from exile to the battlefield.
When Oblivion Ring enters the battlefield, its first ability triggers, exiling Touch the Spirit Realm.
Touch the Spirit Realm 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 Oblivion Ring 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 Oblivion Ring leaves the battlefield, its second ability triggers, returning Touch the Spirit Realm to the battlefield from exile.
Repeat from step 2.

Oblivion Ring

Cast Lumbering Battlement by paying {4}{W}.
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 Touch the Spirit Realm to return from exile to the battlefield.
When Touch the Spirit Realm enters the battlefield, it triggers, exiling Lumbering Battlement until Touch the Spirit Realm leaves the battlefield.
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 Touch the Spirit Realm 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.
Touch the Spirit Realm leaves the battlefield, ending its effect, causing Lumbering Battlement to return to the battlefield from exile.
Repeat from step 2.

Lumbering Battlement

Opalescence

Cast Phantom Steed by paying {3}{U}.
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 Touch the Spirit Realm to return from exile to the battlefield.
When Touch the Spirit Realm enters the battlefield, it triggers, exiling Phantom Steed until Touch the Spirit Realm 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 Touch the Spirit Realm 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.
Touch the Spirit Realm leaves the battlefield, ending its effect, causing Phantom Steed to return from exile to the battlefield.
Repeat from step 2.

Combos with "Touch the Spirit Realm"