Requires

Wormfang Drake must be on the battlefield. Mirror Image must be in hand. Phantasmal Image must be in exile (exiled by Wormfang Drake). Mana needed:

Steps

1. Cast Mirror Image by paying , choosing to have it enter the battlefield as a copy of Wormfang Drake.
2. When Mirror Image enters the battlefield, its first ability triggers, exiling Wormfang Drake.
3. When Wormfang Drake leaves the battlefield, its second ability triggers, returning Phantasmal Image to the battlefield as a copy of Mirror Image, thus making it a copy of Wormfang Drake.
4. When Phantasmal Image enters the battlefield, its first ability triggers, exiling Mirror Image.
5. When Mirror Image leaves the battlefield, its second ability triggers, returning Wormfang Drake from exile to the battlefield.
6. When Wormfang Drake enters the battlefield, its first ability triggers, exiling Phantasmal Image.
7. When Phantasmal Image leaves the battlefield, its second ability triggers, returning Mirror Image to the battlefield as a copy of Wormfang Drake.
8. Repeat from step 2.

Results