Firespout is an all-star against all of those decks. Also, the red splash gives you access to REB/Pyroblast which are obviously huge against anything blue (e.g. 2/3 of the format)
I'm willing to bet that Confidant will win more game single-handedly than having access to Swords. An early, unanswered Confidant is almost impossible for many decks to overcome.
UGbr lists have multiple answers to Goyf including: Goyf, Shackles, Sower, Goyf+Bolt. Plus Spell Snare, etc. (Aside: these are the same answers Probasco's list ran without any removal). You'll draw those answers when you're drawing 2 cards a turn with Bob. I'm not telling anyone to play the UGbr build, I just think it's a pretty strong variant.

