It only lets you use either the turn the creature enters
While Subtlety isn't as good, it still holds some value in control decks that want to get rid of an early aggressive creature or planeswalker
Number Ten When Shards of Alara debuted with her in it, this color type called Esper was built around artifacts matter

$1.79 Pippin, Guard of the Citadel The Lord of the Rings: Tales of Middle-earth $0.49 Galadriel of Lothlorien The Lord of the Rings: Tales of Middle-earth $0.59 The Ring Goes South The Lord of the Rings: Tales of Middle-earth $0.49 Elrond, Master of Healing The Lord of the Rings: Tales of Middle-earth $3.99 The Battle of Bywater The Lord of the Rings: Tales of Middle-earth $0.69 Gandalf the Grey The Lord of the Rings: Tales of Middle-earth $2.79 Samwise Gamgee The Lord of the Rings: Tales of Middle-earth $1.29 Eowyn, Fearless Knight The Lord of the Rings: Tales of Middle-earth $1.49 Peregrin Took The Lord of the Rings: Tales of Middle-earth $0.49 Faramir, Prince of Ithilien The Lord of the Rings: Tales of Middle-earth $8.49 Boromir, Warden of the Tower The Lord of the Rings: Tales of Middle-earth $0.49 Gimli, Mournful Avenger The Lord of the Rings: Tales of Middle-earth 0 results found

It's notable that this just puts the cards into my hand and they are revealed, so I won't be able to hold back any surprises for my opponents