Its also nice that it can protect itself by blinking, even if it costs three entire cards
Theres no more dread when you mill the wrong card, because you know youll be able to get it back eventually
Things such as Broadside Bombardiers, Goblin Welder, and Goblin Engineer all give you ways to get rid of this card while the ability is on the stack so that you can use it to discard two, draw three (which is pretty reasonable rate especially in decks that have Welder/Engineer putting things into the graveyard for later) and not be forced to leverage that same ability to your opponent since it won't be in play when the ability resolves
Astarions Thirst Secret Lair Drop In terms of financial value, this new Secret Lair drop only has one expensive card
Once any Cat creature you control dies, you can flip him into Ajani, Nacatl Avenger
The Golgari (black/green) colour combo has proven popular over recent sets, though