Thought Erasure is a uncommon Sorcery card from The List (PLST), collector number GRN-206. Current market price: $0.24, TCGplayer market prices via Scryfall.
Target opponent reveals their hand. You choose a nonland card from it. That player discards that card. Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)