cr:1.2.3a

If a rule or effect requires information about a specific object that no longer exists, instead it uses last known information about that object to fulfil that requirement. Otherwise, if a rule or effect does not specifically refer to that object, last known information is not used.

Example: Midas Touch has the text “Destroy target ally. Its controller creates Gold tokens equal to its cost.” If the ally is destroyed by Midas Touch, or the ally ceases to exist before Midas Touch resolves, last known information about the targeted ally is used to determine the player that controlled the ally and the ally’s cost. In both cases the controller creates gold equal to the cost.

Example: Endless Arrow has the text “When this hits, put it into its owner’s hand.” If Endless Arrow is put into the player’s hand, the chain link of Endless Arrow then holds the last known information about the card. If the card had go again before it was put into hand, the player would still gain an action point when the chain link resolves.