Adagia, Windswept Bastion + Treachery + Dormant Volcano

Adagia, Windswept Bastion

Treachery

Dormant Volcano

How it works

1. Activate Dormant Volcano and up to three other lands by tapping them, adding at least 4.
2. Activate Adagia by paying 3 and tapping it, creating a token copy of Treachery that is legendary attached to any creature.
3. If you control two legendary Treachery permanents, put one into your graveyard due to the legend rule.
4. The Treachery token's enter-the-battlefield ability triggers, untapping Adagia, Dormant Volcano and up to three other lands.
5. Repeat.

This ingenious loop transforms Adagia, Windswept Bastion into a mana-generating engine by repeatedly copying Treachery to untap your lands. When you activate Adagia's high-threshold ability, it manufactures a legendary token copy of Treachery that immediately enters the battlefield attached to a creature, triggering its untap ability to refresh Adagia, Dormant Volcano, and your other tapped lands. The legendary rule cleanly dispatches the redundant copy to the graveyard without interrupting the flow, leaving your lands fully untappable and your mana pool overflowing. With Dormant Volcano pitching in its dual-color production alongside Adagia's white mana, you can feed the loop indefinitely to generate infinite mana of any color your lands can produce.