Do Seals stack power across turns or only provide power for the current turn?

Ruling: Seals are tapped to generate 1 power each, which goes into your resource pool to spend on cards during your turn. Any unspent power disappears at the end of your turn.

Sequence:

• Tap a seal to generate 1 power (instead of recycling a rune)
• Power goes into your resource pool
• Spend the power on cards during your turn
• Any unspent power is lost at end of turn

Nuances:

• Multiple seals can be tapped in the same turn to pay larger power costs (e.g., tap two seals for 2 power)
• Seals and runes can be combined in the same turn (e.g., tap a seal and recycle a rune)
• Normal power rules apply to seals