Pyromancer's Goggles + Increasing Vengeance

Pyromancer's Goggles

Increasing Vengeance

How it works

1. Cast any instant or sorcery by paying its mana cost.
2. Holding priority, activate Pyromancer's Goggles by tapping it, adding .
3. Cast Increasing Vengeance by paying its mana cost, targeting the instant or sorcery cast in step 1.
4. Pyromancer's Goggles triggers, copying Increasing Vengeance, with the copy targeting the original Increasing Vengeance.
5. Resolve the copy of Increasing Vengeance, creating a copy of Increasing Vengeance targeting the original Increasing Vengeance.
6. Repeat step 5.

This clever loop is ignited when you tap Pyromancer's Goggles to fund Increasing Vengeance, letting the artifact's triggered ability copy the spell because its red mana was spent on a red instant or sorcery. That copy targets the original Increasing Vengeance, and by resolving these copies to repeatedly target and copy the original spell from the stack, you can generate an endless chain of copies. Because Pyromancer's Goggles fuels the initial cast and its mana condition naturally synergizes with Increasing Vengeance's color identity, you achieve infinite magecraft triggers entirely on the stack.