Guile, and In the Eye of Chaos

Prerequisites

• Guile on the battlefield
• In the Eye of Chaos on the battlefield
• You have any instant in hand with the mana to cast it

Steps

1. Cast any instant
2. In the Eye of Chaos triggers, choose not to pay for the trigger, exiling the instant and casting it from exile without paying its mana cost
3. Repeat from step 2

Results

• Infinite magecraft triggers
• Infinite storm count