Twincast + Increasing Vengeance

Twincast

Increasing Vengeance

How it works

1. Cast any instant or sorcery spell by paying its mana cost.
2. Holding priority, cast Increasing Vengeance by paying , targeting that spell.
3. Cast Twincast by paying , copying Increasing Vengeance, with the copy targeting Increasing Vengeance.
4. Resolve the copy of Increasing Vengeance, copying the original Increasing Vengeance, with the copy targeting the original Increasing Vengeance.
5. Repeat step 4.

This clever loop creates an endless self-sustaining echo chamber by bouncing the copy effect back onto itself. When you cast your initial instant or sorcery, you follow it up with Increasing Vengeance, which sets the stage for Twincast to step in and copy that first instantiation of Increasing Vengeance. Because the copy of Increasing Vengeance can target the original Increasing Vengeance, you can continuously generate fresh copies that continually re-target each other, producing infinite magecraft triggers.