Random thoughts:
1.
If we take mummies, let's design a deck that uses them effectively. I think they're a great choice for medium damage at low cost. Could even fractal them, maybe.
52g 52g 52g 52o 52o 52o 52q 52q 52r 52r 52t 52t 52t 52t 61o 61o 61q 61q 61q 61q 61q 61q 622 622 622 63a 63a 63a 63a 63a
2.
If we take momentum, how will we use it? phase spider
MF, chrysaora, arctic squid
mummy
fire spirit, phoenix
flying weapon
devourer, vampire, dragon
dune scorpion
I don't see an obvious synergy here unless we did a rainbow with novas (or supernovas) to get them into the game. Momentum would have the most impact on a vampire (extra heal) or dragon (big damage). So, maybe think of a deck idea to use momentum, or let's salvage something else.
3. Our fractal phoenix deck suffered since we only had 3 (and we faced gravity pulled flying Titans!). But we have the chance to salvage some more this round...