***TRIALS RESPONSE***A fire rush against AI3 is very effective, as you maybe know. With great cards as Immolation, Lava Golem and Crimson Dragon a fire rush is very effective.
Your deck looks good, but fire rushes is usually more effective with the use of Lava Golems. You can choose two routes: The plain fire rush or immo photon rush.
The ideal plain fire rush would be using Golems, Phoenixes and Crimson Dragons, like this:
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5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f2 5f2 5f2 5f6 5f6 5fa 5fa 5fa 5fa 5fa 5fa 5fc 5fc 5fc 5fc 5fc 5fc 8pm
This deck uses all the good creatures, while having an earth mark to power up the golems.
The Immo Photon looks a bit different, the main startegy is to play photons and immolate them to get 6 fire quanta and 1 quanta of every element except fire. A nice version would look like something like this:
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52q 52q 590 590 5f0 5f0 5f0 5f0 5f9 5f9 5f9 5f9 5f9 5f9 5fa 5fa 5fa 5fa 5fa 5fa 5fc 5fc 5i7 5i7 5l9 5l9 5l9 5l9 5l9 5l9 8pm
Note: This is not the best version, but a good image of what an immorush looks like.
As you can see, the strategy is pretty different. It is similarities, though. Both of the decks uses Lava Golems and Phoenixes as main damage, and both of them uses mark of earth. They are two of the most effective unupped rushes aviable, and I strongly consider trying both to find out what deck that fits your playstyle the most. And remember: I am just coming up with sketches and exaples of the deck archetypes. Feel free to change the decks the way you like them the most. There are no 'perfect deck'.
Have fun