"Oh, I had a conscience once. But alas, I seem to have forgotten where I put it."
—Chandler

Memory Lapse

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

「我々が忘れてしまった考えはどこへ行ってすまったのだ？かつて知っていたことが思い出せない。」
——タイヴァ校長の日記

Strixhaven Mystical Archive

"Where do our forgotten thoughts go? I knew once, but I can't remember."
—Director Taiva, journal entry

What a lonely agony, the memory of memories lost.

The List

Eternal Masters

"Um . . . oh . . . what was I saying?"
—Reveka, wizard savant

Magic Online Promos

Memory Lapse has a self-replacement effect that replaces the spell going to the graveyard before any other effect can replace that event. If the spell was cast using flashback, however, flashback will change the spell's destination from its owner's library to exile.