Text (M10): As ~this~ enters the battlefield, name a card. ; Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.
The choice of a named card refers to all cards of that name in the game, even ones that have not entered play. And it even prevents the use of activated abilities of cards with that name in the graveyard or hand. [D'Angelo 2005/12/01]
