DarkSaint85
Bonified abstract
To power Z's spells, Aquaman's Trident and WW herself, being the Goddess of War, would be sufficient for her to magick up anything (not that she needs them, but just in case).
Cloaking spells which would stop telepaths/other magic users, layered on top of Cyborg's anti-tech cloaking, layered on top of GL cloaking them....
Whilst they are all shrunk to the size of an atom? I'm going to need to see some scans of Prof X (who's dead, so Red Skull I suppose) being able to detect something on that scale (of course, not Oan cloaking, but detecting someone who's incredibly tiny and also magically/technologically cloaked). Or any other telepath.
Ditto Strange, who's currently a whole bag of mess right now. Or anyone else, really, being able to detect a magically/technologically cloaked opponent (whom they have no reason to even suspect in the first place) who is shrunk down to the size of molecules.
Infiltration is easy.
Now, I realise I am mixing DCnU and preboot feats, but I feel justified in the case of Ray Palmer, as he hasn't had many appearances in DCnU (or even feats - all we know is that he has his abilities still, and is the science advisor for DCnU's most secretive science division).
With DCnU Cyborg there, they can EASILY boom tube all over Marvel Earth, laying their shrink tech at different parts of the core, in case people are wondering how long it would take. At the size that they are at, 2 weeks would be like an eternity (as a comparison, in JLA #42, when they were shrunk, a minute was like six months to them). Plenty of time for them to create whatever tech they need.
Then, on D-Day (Destroy Day), they trigger all the devices, the Earth's core is shrunk (or at least, large enough chunks of it), and Cyborg boom tubes it away. Destroying the Earth.
Supermex, that's what you wanted, isn't it??