Tameshi, Reality Architect + Walking Atlas + Retreat to Coralhelm + Lotus Petal

Tameshi, Reality Architect

Walking Atlas

Retreat to Coralhelm

Lotus Petal

How it works

1. Activate any land by tapping it, adding at least .
2. Activate Tameshi's ability by paying and returning the land from the battlefield to your hand, returning Lotus Petal from your graveyard to the battlefield.
3. Activate Walking Atlas by tapping it, putting the land from your hand onto the battlefield.
4. Retreat to Coralhelm triggers, untapping Walking Atlas.
5. Activate Lotus Petal by tapping and sacrificing it, adding one mana of any color.
6. Repeat.