OK!

Darkseid's Omega Effect option #2 allows you to modify your Damage by -2 to make the damage that you do PENETRATING DAMAGE. If you use the Outsider TA on Darkseid BEFORE declaring your ranged attack does that allow you to gain the benefit of the PENETRATING DAMAGE without the penalty of -2 to your damage.

The way I read it, it seems that you have to -2 dmg as a requirement to gain the PenDmg. No -2 no PenDmg.

DISCUSS, I COMMAND IT!

There's nothing to discuss. This has been mentioned as a perfectly viable strategy since the set came out.

Thats alls i needs to knows

Buahahahhaaa!

Not only that, but it is nothing new. You could use it on JL SR Batman, for example, to avoid the -1 to damage on Datarangs.

These things are powers with effects. The -2 is an effect. The penetrating is an effect. Tere's nothing to say that all effects must happen in order to succeed.

Wow, didn't think about that. That's awesome.

Does it also work with his other options?

It wouldn't work with option 1, since halving the range is a replacement value, and the Outsiders team ability only prevents modifiers, not replacement values.
Likewise, it wouldn't work with option 3 which is also a replacement value.

Not to mention M&M's Colossus... Outsiders takes away the -2 deficits from Fastball Special (making the attacker more viable after the "throw")... that's just nasty with a few "Activation click" figures

Just remember that outsiders has to be declaried at the start of your turn. not when you are making your range attack.