Can cards with the Hidden keyword be played face-up for their normal printed cost without hiding them, or must they always be hidden?

Ruling: Cards with Hidden can be played either way - hidden for 1 power (and no cost when played from hidden), or face-up for their normal printed cost. Hidden is an optional additional way to play the card, not a requirement.

Nuances:

• Once you hide a card, you cannot subsequently choose to pay its normal costs to play it as if it's not hidden
• When played normally (not hidden), the card has normal timing and no targeting restrictions