I like the idea...
more luciferase/hope.
trebutchet should be replaced or removed... otherwise ai will throw all the massive dragons.
overdrive doesn't seem necessary either: there is plenty of damage, and it removes the 
production.
Unstoppable could be added if you want this god less easy to be countered- it does a better job at bypassing shields than trebuchet.
Well, I'm trying to shy away from Hope because that's the point of "HopeLESS Dragons". Those two copies of Hope were an afterthought and should be thought of as a surprise by the player.
It's not bad that AI throws one Massive Dragon. After all, it takes 3 turns for an unbuffed Massive Dragon to deal more damage than a single Trebuchet throw, and that's assuming there's no damage reduction, freeze, delay, or Antimatter involved.
Momentum, on the other hand, doesn't protect against any of the above unless they come from shields, only affects 1 creature per copy, and can be easily Lobotomized. Last but not least, Momentum does not protect this deck from additional counters such as Phase Shield decks because a Chimera or a Trebuchet already does that. I prefer 1 Trebuchet and 1 Chimera over 2 Momentums.
Remember that Overdrive can also be used as CC, and is the only card within Gravity and Light that lobotomizes enemy creatures. In addition, it helps increase the damage threshold for the Chimera. In a meta where healing and sundials run amok, OTK is king.
My viewpoints may not be entirely justified, but those were just my thoughts when I made the deck.
