Can Seal of Rage be used to pay for Sigil of the Storm's recycle cost?

Ruling: No, Seal of Rage cannot be used to pay for Sigil of the Storm's recycle cost. Seals can only pay for Power costs, while Sigil of the Storm specifically requires you to recycle a rune.

Nuances:

• Power costs can normally be paid by recycling a rune, but can also be paid through Seals or card abilities
• When a card specifically says "recycle a rune" rather than "pay Power", you must actually recycle a rune and cannot use alternative payment methods