Gretchen Titchwillow + Oboro Breezecaller + Storm the Vault // Vault of Catlacan
How it works
- Activate Vault of Catlacan by tapping it, adding at least .
- Activate a land that enters untapped by tapping it, adding at least .
- Activate Oboro Breezecaller by paying 2 and returning the land that taps for from the battlefield to your hand, untapping Vault of Catlacan.
- Activate Gretchen by paying 2, causing you to draw a card and put the land from step 3 onto the battlefield.
- Repeat.
This intricate mana loop transforms a sea of artifacts into an unstoppable engine by leveraging the massive blue mana production of Vault of Catlacan—the back side of Storm the Vault—to fund our continuous actions. To keep the machinery turning, Oboro Breezecaller provides the vital bounce-and-untap utility by returning a tapped land to your hand so it can be replayed, while Gretchen Titchwillow channels that surplus mana to immediately drop that land back onto the battlefield and draw a fresh card. As you repeat this cycle, Gretchen Titchwillow's ability fuels an endless stream of card draw and landfall triggers while Vault of Catlacan's tapped-down treasures and artifacts more than pay the costs for Oboro Breezecaller and Gretchen Titchwillow to keep the loop going indefinitely.