Odds on if I haven'r mention a card I think it isn't something you want in the deck or it is clearly similar and worse than something I have discussed
Mystic Remora Is there anything better than a turn-one Mystic Remora
7 Emiel The Blessed Blink Blessings Similar to Duke Ulder Ravengard, Emiel the Blessed has a very strong ability to let you repeatedly get that Hare Apparent enter the battlefield trigger going over and over again
Not only was it the perfect tonic to the silliness of Aetherdrift, it also offered plenty of valuable cards from dragons, to behemoths, to much, much more
It is also less broad in range than Dreadbore
There are about 50 copies total on that site, including 20 or so held by ChannelFireball, but the curve from $25 to $40 is relatively steep past the first 10 copies, and the rest of the web is carrying another 50-60 copies with a similar price curve