Thanks for getting decks posted.
My only large changes would be to use a Rainbow against UW and a Mono against Time. Underworld's main form of denial is EQ and Discord, while Time's main form of denial is RT. The Rainbow is much better matched against Discord/EQ and the Mono is better matched against RT. I notice that you want to use a lot of PC against Time and a way to bypass wings against UW, but there is a better way to accomplish this.
I didn't check the pillars/pends yet, but we should be fine, since we can convert. Changes in bold.
Underworld
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4vh 4vj 4vj 4vj 4vj 4vj 4vj 52g 52g 52g 52g 52g 52g 52g 52q 52t 52t 52t 52t 52t 52t 590 590 590 590 5c1 5og 71a 7dm 7dm 8pm
Strength changes: Much more resistant to UW's denial, a lot faster, and its defense is almost as good. Its only increased weaknesses are BH and RT, but I don't expect UW to have those.
Vault changes: Compared to the Time rainbow, +1 Lycan, +1 Spirit, +2 Arsenic. They were all in our leftover cards. -1 Shockwave, -1 Steal.
Earth
+1 Short Sword, -4 Mummies, +1 Dragon (we need something expensive to absorb the late-game quanta), +2 Flesh Recluses (upgraded).
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4t4 4t4 52g 52g 52g 52g 52g 52g 52g 52h 52t 542 542 542 542 542 542 542 5uo 5up 5up 5v1 5v2 713 713 713 713 713 7ta 7tb 8pt
This doesn't really change this deck strategically, it just allows our next deck to be legal.
First, we need to
Recover 1 Bonewall from jippy's deck instead of the pillar.
We will change our Darkness salvage from 1 Shockwave, 1 Gargoyle, 1 Steal ---> 2 Steals, 1 Vampire Stiletto.This allows us to have everything in our old mono +1 Bonewall, +3 steals, +1 Vamp Stiletto, +3 Mummies, but at the cost of -2 Flesh Recluses and -1 Dragon.
Time
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52g 52g 52g 52g 52g 52g 52g 52g 52g 52g 52g 52h 52h 52o 52o 52t 52t 52t 52t 52t 52t 710 71a 71b 71b 71b 7t9 7t9 7t9 7tb 8pt
Strength changes: The damage is about equal because, with our old deck, it would be risky to evolve the graboids since they could easily get RTed. Here, once again I use 6 Mummies and 2 Dragons if their RTs are lured away, overall both decks should have about the same damage. However, this deck has stronger PC (Steal > Deflag) with improved defense because of 3 Bonewalls.
Vault changes: I think everything is legal if we tweak our conversions a bit.
Aether
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52g 52g 52l 52l 52l 52p 52p 52p 52p 542 542 542 542 542 542 542 542 542 593 593 593 593 593 593 594 594 594 594 594 594 5aa 5aa 5aa 5aa 5aa 719 77c 77c 8pm
No major changes here. I just wanted 6 SSs.
+2 Stone Skins, -1 Earth Pend, -1 Bone Pillars, +2 Death Pends.
OK, done. This looks like a lot, but the only major changes are for the Time and Underworld decks.
Unless someone wants to change something, we can add these to the vault. I'll be back on tomorrow.