Do seals generate energy or power?

Ruling: Seals generate power, not energy. When you tap a seal, you generate power without having to recycle a rune.

Nuances:

• Energy is generated by exhausting (tapping) runes - shown as numbers in a dark circle
• Power is generated by recycling runes (putting them under your deck) - shown as symbols
• Seals are an exception that generate power through exhausting instead of recycling
• Power and energy are two different resources and cannot be used interchangeably