Yeah, this looks pretty sound. People (like me, for example) also like to pack in Phase Shields in these kinds of decks, so I'd switch out a rage potion for an Explosion. Rage Elixir is really the only card I see here that does not play a mission-crucial element. Protect Artifact can also be switched for an Explosion. Otherwise, nice deck.
Other good counters to Fractal decks are Thunderstorm / Death decks (for Phoenix and RoL), mono-Aether (for damage fractals), or just a faster deck (Vreely's golem deck or a good Shrieker or Adrenaline).