Interceptor, Shadows Hound Interceptor, Shadow's Hound lets you stay aggressive in a black deck as long as you can reliably attack with a legendary creature
Well, the most common way is probably going to be to use an effect like Wish (which is also in Mystery Booster 2 ) or Cunning Wish to either bring Can't Quite Recall into the game or let you cast it from outside the game
The only way that Crucible of Fire will escape bulk pricing again is if there are a lot of very small, very good dragons in the next block
That, and it shuts down a variety of combos utilizing Dockside Extortionist and similar cards
If you plan on doing something with the creature in your graveyard, then Shefet Monitor is a neat ramp card
This means that if you have a Mewtwo ex in the active spot, it can use its most powerful move every turn