Isochron Scepter + To Arms! + Vizier of Tumbling Sands

Isochron Scepter

To Arms!

Vizier of Tumbling Sands

How it works

1. Activate any number of creatures by tapping it, adding at least 2.
2. Activate Isochron Scepter by paying 2 and tapping it, casting a copy of To Arms! without paying its mana cost.
3. Resolve the copy of To Arms!, untapping all creatures you control and causing you to draw a card.
4. Activate Vizier of Tumbling Sands by tapping it, untapping Isochron Scepter.
5. Repeat.
6. If creatures you control can tap to produce at least 3, this combo nets near-infinite mana.

This loop turns Isochron Scepter into an engine by packing it with a copy of To Arms! ready to be cast over and over. Each time you cast To Arms!, its resolution untaps all your creatures—including Vizier of Tumbling Sands, whose own tap ability you can then use to untap the Isochron Scepter itself. As long as your creatures can generate enough mana to keep paying the Scepter's activation cost, Vizier of Tumbling Sands helps sustain the cycle while the spell keeps drawing you through your deck.