A disguise ability lets you cast a card face down by paying {3} and announcing that you are using a disguise ability. Any time you have priority, you can turn a face-down permanent with disguise face up by paying its disguise cost.
Flourishing Bloom-Kin
If a face-down spell leaves the stack and goes to any zone other than the battlefield (if it was countered, for example), you must reveal it. Similarly, if a face-down permanent leaves the battlefield, you must reveal it. You must also reveal all face-down spells and permanents you control if you leave the game or the game ends.
Turning a permanent face up or face down doesn't change whether that permanent is tapped or untapped.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Ben Hill
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
