Requires

Romana II must be on the battlefield. Overlord of the Hauntwoods must be in hand. Retreat to Coralhelm must be on the battlefield. Amulet of Vigor must be on the battlefield. Romana II does not have summoning sickness. Mana needed:

Steps

1. Cast Overlord of the Hauntwoods by paying .
2. When Overlord of the Hauntwoods enters the battlefield, it triggers, creating a tapped Everywhere land token.
3. When the Everywhere token enters the battlefield, Amulet of Vigor and Retreat to Coralhelm trigger.
4. Reoslve the Amulet of Vigor trigger, untapping the Everywhere token.
5. Resolve the Retreat to Coralhelm trigger, untapping Romana II.
6. Activate the Everywhere token by tapping it, adding .
7. Activate Romana II by paying and tapping it, creating a tapped copy of the Everywhere token.
8. Repeat from step 3.

Results