Infinite card drawInfinite draw triggersNear-infinite storm countNear-infinite magecraft triggersNear-infinite untap of creatures you controlNear-infinite mana creatures you control can produce
How it works
Activate any number of creatures you control by tapping them, adding at least 5.
Activate Isochron Scepter by paying 2 and tapping it, casting a copy of To Arms! without paying its mana cost.
Resolve To Arms!, untapping all creatures you control.
Activate Elder Druid by paying 3 and tapping it, untapping Isochron Scepter.
Repeat.
By imprinting *To Arms!* onto **Isochron Scepter**, you unlock a magnificent engine of perpetual motion. While the Scepter provides the free copy, it's **Elder Druid** that makes the loop sustainable by repeatedly untapping the artifact whenever it gets tapped to activate. Meanwhile, the resolving copy of **To Arms!** untaps your druid and any mana-producing creatures you control—providing the mana fuel needed to pay **Elder Druid**'s activation cost and the Scepter's activation fee while churning through your entire deck one card at a time.