Can you recycle an exhausted rune?
Yes. A rune's Recycle ability costs "Recycle this" — it does not require exhausting the rune — so a rune that is already exhausted can still be recycled to add power. The recycled rune returns to your rune deck.
Yes. A rune's Recycle ability costs "Recycle this" — it does not require exhausting the rune — so a rune that is already exhausted can still be recycled to add power. The recycled rune returns to your rune deck.