Historical Rules · 8 November 2024
Rule 701.56a
Official source text from the 8 November 2024 Rules release
To cloak a card, turn it face down. It becomes a 2/2 face-down creature card with ward {2}, no name, no subtypes, and no mana cost. Put that card onto the battlefield face down. That permanent is a cloaked permanent for as long as it remains face down. The effect defining its characteristics works while the card is face down and ends when it’s turned face up.