Requires

Admonition Angel must be on the battlefield. Ashaya, Soul of the Wild must be in hand. Detention Sphere must be on the battlefield. Oblivion Ring must be in exile (exiled by Detention Sphere). Mana needed:

Steps

1. Cast Ashaya.
2. Admonition Angels landfall ability triggers, exiling Detention Sphere.
3. Detention Sphere's LTB triggers, returning Oblivion Ring to the battlefield.
4. Oblivion Ring's ETB triggers, exiling Admotion Angel.
5. Admonition Angel's LTB triggers, returning Detention Sphere to the battlefield.
6. Detention Sphere's ETB triggers, exiling Oblivion Ring.
7. Oblivion Ring's LTB triggers, returning Admonition Angel to the battlefield.
8. Admonition Angel's landfall ability triggers, exiling Detention Sphere.
9. Repeat.

Results