In Commander, where players have access to so much fast mana, this is potentially a death sentence
This card grants the ability to play lands from the top of your library, mitigating the frustration of late-game land draws
premium in the right color pairs
The other notable one is Hostile Hostel, which can transform into Creeping Inn, a 3/7 horror construct that exiles a creature card from a graveyard when it attacks, before each opponent loses X life and you gain X life, with X being the number of creatures it has exiled
Then the two-drop 1/3 Tinybones, Bauble Burglar has a trigger when a foe discards to exile it with a counter and then you can play them on our turn and we can use any of our mana on it, then we can tap it at sorcery speed with four to force everyone else to discard too
Cruella De Vil, Miserable As Usual When she stops by, misery is company