Guile, Sapphire Dragon // Psionic Pulse, and Lucky Clover

Prerequisites

• Guile on the battlefield
• Sapphire Dragon // Psionic Pulse in hand
• Lucky Clover on the battlefield
• There is another noncreature spell on the stack
• available

Steps

1. Cast Psionic Pulse by paying , targeting another noncreature spell currently on the stack
2. Lucky Clover triggers, copying Psionic Pulse, with the copy targeting the original Psionic Pulse
3. Resolve the copy of Psionic Pulse, causing you to exile the original Psionic Pulse, and cast it from exile without paying its mana cost, targeting another noncreature spell due to Guile
4. Repeat from step 2

Results

• Infinite storm count
• Infinite magecraft triggers