Lets completely ignore the 2nd ability, that of generating quanta. I think even if you took that out this card would be a lil OP. I'd certainly use it in mono-aether to give my immortal creatures momentum. 6 dragons, 6 immortals, 6 SoW and 6 of this and however many pillars you need to power the whole thing. Especially scary in the hands of an Arena deck where the mana and cards flow freely.
Momentum is a pretty strong ability, I'd think maybe Acceleration would be a better choice at this cost.
While the example is a possible deck, I don’t think it’s OP – by adding so much shield evasion, you’re neglecting the fact that your opponent has other ways to win – you won’t be able to answer any rush, poison deck, or healstall very well for example.
24 cards for this hypothetical ‘mono-aether’ deck means you’d also need a large amount of pillars to support it. 16 pillars + 6 dragons, 6 immortals, 6 SoW and 6 Hammer (2
) gives me a quantum index of 7.13, which indicates this deck is not only slow but also very tight on quanta. While a slower deck normally handles higher quantum indexes better, it usually does so because it’s stall or control deck – this deck has no real stall or control cards.
I think Acceleration would actually be the stronger ability since it has the potential to increase ATK, which allows you to deal more immediate damage and thus get you closer to winning the game faster. Momentum may help evade shields, but it may not necessarily help every single time. (Also consider that this card doesn’t give the +1|+1 of the Momentum spell, so Scorpion decks still have a reason to use Momentum instead of Gravity Spire. Changing the effect to an ATK buff would force both cards to compete in Scorpion decks.)
