Hoverguard Sweepers + Morophon, the Boundless + Jodah, Archmage Eternal

Hoverguard Sweepers

Morophon, the Boundless

Jodah, Archmage Eternal

How it works

1. Cast Hoverguard Sweepers by paying 0.
2. When Hoverguard Sweepers enters, it triggers, returning itself from the battlefield to your hand.
3. Repeat.

This elegant loop uses Morophon, the Boundless to name "Avatar" or any other creature type shared by Hoverguard Sweepers, reducing its colored mana requirement to zero. When combined with Jodah, Archmage Eternal's alternative cost, you can cast the Sweepers for free. As Hoverguard Sweepers enters the battlefield, its own triggered ability forces it right back to your hand, allowing you to repeat the process indefinitely for an infinite storm count and endless enters-the-battlefield triggers.