Locke, Treasure Hunter

• WWizards of the Coast2025-06-06
  Official Ruling
  Losing control of Locke after the last ability has triggered won't affect your ability to cast a spell from among the milled cards.
• WWizards of the Coast2025-06-06
  Official Ruling
  Once Locke has been blocked, changing its power or the power of the blocking creature won't cause Locke to become unblocked.
• WWizards of the Coast2025-06-06
  Official Ruling
  You must pay the costs to cast that spell. If it has an alternative cost, you may cast it for that cost instead.
• WWizards of the Coast2025-06-06
  Official Ruling
  If you cast a spell from among the milled cards using another permission, Locke's effect doesn't apply. You can cast another spell from among the milled cards using the permission granted by Locke's last ability.
• WWizards of the Coast2025-06-06
  Official Ruling
  As long as one or more lands were milled this way, you'll create a Treasure token. Additional land cards milled beyond the first won't cause you to create additional Treasures.
• WWizards of the Coast2025-06-06
  Official Ruling
  You must follow the normal timing permissions and restrictions of the spell you cast from among those cards.

Rulings via Scryfall