Driver of the Dead

• WWizards of the Coast2024-11-08
  Official Ruling
  If Driver of the Dead dies at the same time as a creature with mana value 2 or less, you can target that card and return it to the battlefield.
• WWizards of the Coast2024-11-08
  Official Ruling
  If a card in a player's graveyard has in its mana cost, X is 0 for the purpose of determining its mana value.
• WWizards of the Coast2024-11-08
  Official Ruling
  If a creature card with mana value 2 or less becomes a copy of Driver of the Dead and dies, it can be the target of its own ability.

Rulings via Scryfall