Pyromancer's Goggles, and Reiterate

Prerequisites

• Pyromancer's Goggles on the battlefield
• Reiterate in hand
• plus enough mana to cast the additional instant or sorcery available

Steps

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

Results

• Infinite magecraft triggers