Adagia, Windswept Bastion + Treachery + Azorius Chancery

Adagia, Windswept Bastion

Treachery

Azorius Chancery

How it works

1. Activate Azorius Chancery 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, Azorius Chancery and up to three other lands.
5. Repeat.