When determining a card's cost, does it include both Energy and Power costs, or just Energy?

Ruling: A card's cost includes both the Energy cost (the numeral) and the Power cost (the symbols listed vertically), which are both printed in the upper left corner of the card.

Nuances:

• When effects reference a card's cost for any purpose, they always use the base cost printed on the card, even if that cost is altered or ignored when the card is played
• Not all cards have a Power cost section