Runes are Recycled to the Rune Deck.
§ 416.1.b Core Rules PDF (officieel)
§ 416 Recycle
§ 416.1 Recycling cards is the action in which a player takes one or more cards from a specific zone and then puts it on the bottom of the corresponding deck.
§ 416 Recycle
§ 416.1 Recycling cards is the action in which a player takes one or more cards from a specific zone and then puts it on the bottom of the corresponding deck.
Runes are Recycled to the Rune Deck.