Teach by Example + Increasing Vengeance

Teach by Example

Increasing Vengeance

How it works

1. Cast any other instant and/or sorcery spell by paying its mana cost.
2. Holding priority, cast Teach by Example by paying U/RU/R, copying the next instant or sorcery spell you cast.
3. Cast Increasing Vengeance by paying , targeting the instant or sorcery spell cast in step 1.
4. Teach by Example triggers, copying Increasing Vengeance, with the copy targeting the original Increasing Vengeance.
5. Resolve the copy of Increasing Vengeance, copying Increasing Vengeance, with the copy targeting the original Increasing Vengeance.
6. Repeat step 5.

This clever spell-duplication loop kicks off by casting any initial instant or sorcery, setting the stage for Teach by Example to prime your spells with its self-contained copy effect. Once you cast Increasing Vengeance targeting your first spell, Teach by Example triggers to copy it, allowing you to continually target and copy the original Increasing Vengeance over and over. Because the copy of Increasing Vengeance can continually target its own progenitor on the stack, you create a self-sustaining loop that generates infinite copies and triggers without ever needing to cast anything else from your hand.