When Driver of the Dead dies, return target creature card with mana value 2 or less from your graveyard to the battlefield.
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.
If a card in a player's graveyard has {X} in its mana cost, X is considered to be 0.
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.