What happens to unspent energy or power at the end of your turn?

Ruling: Any energy and power remaining in your resource pool will disappear at the end of your turn. The runes that generated that energy/power remain in their current state (exhausted or ready) - only the generated resources are lost.

Sequence:

• Generate energy/power during your turn (by exhausting runes or through card effects)
• Spend the energy/power to play cards or activate abilities
• At end of turn, any unspent energy/power disappears from your resource pool
• Exhausted runes stay exhausted (they don't go anywhere)

Nuances:

• Energy and power are virtual resources separate from the physical rune cards
• If you exhaust runes to generate energy but don't spend it, the runes remain exhausted and the energy is wasted
• Runes do not go to the trash or rune deck when their generated energy/power is lost