Thrumming Stone + Memory Lapse + Swarm Intelligence

Prerequisites

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Steps

1. 1Cast any other spell, or wait for an opponent to cast one.
2. 2Cast Memory Lapse by paying , targeting that spell.
3. 3Swarm Intelligence and Thrumming Stone trigger.
4. 4Resolve the Swarm Intelligence trigger, creating a copy of Memory Lapse, targeting the original Memory Lapse.
5. 5Resolve the copy of Memory Lapse, countering the original Memory Lapse and putting it on top of your library.
6. 6Resolve the Thrumming Stone trigger from step 3, revealing the top four cards of your library and casting Memory Lapse without paying its mana cost.
7. 7Repeat from step 3.

Effects

• Infinite magecraft triggers
• Infinite storm count