Abdel Adrian, Gorion's Ward + Oblivion Ring + Leonin Relic-Warder

Steps

1. Cast Oblivion Ring by paying {2}{W}.
2. When Oblivion Ring enters the battlefield, its first ability triggers, exiling Abdel Adrian until Oblivion Ring leaves the battlefield.
3. Abdel Adrian leaves the battlefield, ending its effect, causing Leonin Relic-Warder to return from exile to the battlefield.
4. When Leonin Relic-Warder enters the battlefield, its first ability triggers, exiling Oblivion Ring.
5. When Oblivion Ring leaves the battlefield, its second ability triggers, returning Abdel Adrian from exile to the battlefield.
6. 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.
7. When Leonin Relic-Warder leaves the battlefield, its second ability triggers, returning Oblivion Ring to the battlefield from exile.
8. Repeat from step 2.