Can Retreat channel a rune exhausted on a token that will be destroyed, since the token's owner can still be identified after it changes zones?

Ruling: Yes, the owner of a token can still be identified even after the token is destroyed and changes zones, similar to how Hidden Blade works.

Nuances:

• This applies even though the token cannot return to hand and will be destroyed
• The game can track information about a card even after it has changed zones