Akoum Hellhound This card is actually really good, but its in the Honorable Mentions due to deck-building costs
There are actually quite a few black good guys in the game (Liliana, of course, but also people like Toshiro Umezawa, Chainer, Yahenni, Maralen and Drana also qualify, among others)
Even if Dragonite has a three-star rarity, its illustration rare version is only a one-star, which makes it easier to get than others
It also draws you a card when it enters the battlefield, which is great at any point in the game.
Contents: A 100-card deck with 3 new cards
Especially since the printings of Ragavan, Nimble Pilferer and Dragons Rage Channeler, the steal a casting cost 1 nonland-permanent mode has become very important and overall buffed the playability of the card