There are tons of ways to make Treasures these days, which also means that in some Cubes youll be able to get good mileage out of Kelloggs ability to steal opposing creatures
Theres an upper limit on how many Rooms you can sensibly play in one Draft (well, unless theyre the red removal Room), but the accompanying support mechanic, eerie, is also written to trigger off any enchantment entering play, like an upgrade of constellation
Also, allies are good to have
For example, if you find yourself having trouble beating Burn even though you think the matchup is close, you could add an extra Gnaw to the Bone in your sideboard
This looks like a four damage burn spell, but in the absence of an effect like Heroic (which, yes, is on a single Boros uncommon), this is the kind of combat trick that tends to be a one-for-two
Destroy it