Historical Rules · 1 October 2009
Rule 201.2b
Official source text from the 1 October 2009 Rules release
If an ability of an object grants to an object an ability that refers to the first object by name, the name refers only to the object whose ability grants that ability, not to any other object with the same name. Example: Saproling Burst has an ability that reads "Remove a fade counter from Saproling Burst: Put a green Saproling creature token onto the battlefield. It has 'This creature's power and toughness are each equal to the number of fade counters on Saproling Burst.'" The ability granted to the token only looks at the Saproling Burst that created the token, not at any other Saproling Burst on the battlefield.