My opinions, deck by deck:
Salvage Entropy:
2 novas, 2 dim shields, 2 fractals.
2 extra of each will be good if we are forced to discard in the future.
Salvage Gravity:
1 Fog shield
1 extra could be good in the rainbow.
4 FWs, 2 Titans and 2 Wyrms.
Don't really see them being used much, but we have to take something, and the catas looked more useless to us.
Discard:
All we have to do is discard the pillars and pendulums, right. We can always convert later.