Focused Scrutiny

Create a Seeing Orb token. (It's an artifact with, "{t}, Sacrifice this artifact: Scry 1.")
Target opponent reveals a number of cards in their hand equal to the number of artifacts you control. You choose a nonland card from it. That player discards that card.
"Faren technology fused with elven magic has made privacy and freedom merely an illusion,"
— Eringal, Border Mistress