How do seals work in Riftbound, particularly regarding their cost, resource generation, and reaction timing?

Ruling: To play a gear (seal) from hand, you recycle 1 rune of the matching color one time. Once on board, using the gear each turn is free and it produces 1 power of that color, which can pay for power costs on cards without needing to recycle additional runes.

Sequence:

• Pay the initial cost (recycle 1 matching rune) to play the seal from hand to board
• Each turn thereafter, activate the seal for free to generate 1 power
• Use that power to pay for power costs on cards (e.g., a card costing 3 runes + 1 yellow power would only require paying 3 runes if you have 1 yellow power from a seal)

Nuances:

• Seals cannot pay for effects that specifically require you to recycle runes (like Sigil of the Storm)
• Seals have speed "reaction" but nothing can react to them, preventing opponents from responding before you receive the resources
• This prevents counter-spell scenarios where an opponent could act before you gain the power needed to respond
• You can stack multiple reactions before passing priority to the next player