Thrumming Stone + Memory Lapse + Thousand-Year Storm

Prerequisites

• You have cast at least one instant and/or sorcery this turn.

Steps

1. 1Cast any other spell, or wait for an opponent to cast one.
2. 2Cast Memory Lapse by paying , targeting that spell.
3. 3Thousand-Year Storm and Thrumming Stone trigger.
4. 4Resolve the Thousand-Year Storm trigger, creating at least one copy of Memory Lapse, with each copy targeting the original Memory Lapse.
5. 5Resolve the first copy of Memory Lapse, countering the original Memory Lapse and putting it on top of your library.
6. 6All remaining Memory Lapse copies fizzle due to no longer having a legal target.
7. 7Resolve the Thrumming Stone trigger from step 3, revealing the top four cards of your library and casting Memory Lapse without paying its mana cost.
8. 8Repeat from step 3.

Effects

• Infinite magecraft triggers
• Infinite storm count