Having thought more about it, Steam Machine is amazingly underpowered.
Let's compare it to Abyss Crawler. 6/6 for 4
.
Accumulative damage, if both are played on the same turn:
Creature | Turn 1 | Turn 2 | Turn 3 | Turn 4 | Turn 5 | Turn 6 |
Abyssal Crawler | 6 | 12 | 18 | 24 | 30 | 36 |
Steam Machine | 0 | 4 | 11 | 21 | 34 | 51 |
So you see, Steam Machine doesn't start doing more damage until 5 turns in, at which point it will start doing much more. Still, it's a moot point, when you also look at the accumulative COSTS.
Accumulative cost, if both are played on the same turn:
Creature | Turn 1 | Turn 2 | Turn 3 | Turn 4 | Turn 5 | Turn 6 |
Abyssal Crawler | 4 | 4 | 4 | 4 | 4 | 4 |
Steam Machine | 5 | 5 , 2 | 5 , 4 | 5 , 6 | 5 , 8 | 5 , 10 |
Using unupped steam machine because the upped version has no effect on attack and so gives it the best ratio.
Or, if you look at it with SoR, you're just paying 8
(mono probably) but no fire quanta at all. But that's a two card combo, and still costs double that of Abyssal Crawler.
Also worth mentioning is the control the two cards are susceptible to.
Abyssal Crawler | Rage Elixir | 10+ Quanta Fire Bolt, 20+ Quanta other "Bolt-Like" Spell | Congeal | Antimatter | Gravity Pull | Devour | | |
Steam Machine | 40+ Quanta Fire Bolt, 70+ Quanta other "Bolt-Like" Spell | Lobo | Congeal | Rewind | Mutation | Quanta Denial (limited) | Antimatter (limited) | Gravity Pull (limited) |
So you see, in some ways the Steam Machine is just as vulnerable to control as Abyssal Crawler is, just in different ways. I used the upped version of steam machine in this instance, so keep in mind that it also costs nearly twice as much.
To recap:
-Doesn't out-damage Abyssal Crawler until turn 5
-You will have paid at least 8
by then, more likely 5
8
. Upped, add 2
to both of those. Comparably, you will have only paid 4
with the Crawler
-Upped Machine is just as easy to control as Abyssal Crawler and unupped is probably even easier
Now, the problem with the Steam Machine isn't the ability cost. 2 Fire for what amounts to +3/+0 each turn is respectable, and the purpose of Steam Machine was to give SoR a good use. Having the ability cost 1 Fire does not give any use to SoR.
Instead, the initial cost is the problem. I would say make it cost drastically lower. 4 Water unupped, 5 Water upped for starters. Maybe as low as 3 Water unupped, 4 Water upped.