Locke, Treasure Hunter

Locke can't be blocked by creatures with greater power. Mug — Whenever Locke attacks, each player mills a card. If a land card was milled this way, create a Treasure token. Until end of turn, you may cast a spell from among those cards.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6o9df164ndpb1h8ajzvb2l.