No need for the opposed rolls part. The only thing I feel would benefit from a die roll is the Challenge aspect of the system.
Yes, it's evens grant a success, but each 6 grants an extra success. I was basing the y6 part on the Conan extension code. I didn't realize you could do a constant for the same result, but, duh, yeah, I see when you're doing the loop through the dice rolls, you're just checking the variable and why not just put 6 there. Sorry about that.
Modifiers and Building Dice Pools
Yes, there are ways to bump up the dice pool. One example: You can go "all out" to get +2d6. Cover can provide +/- 2d6 or 4d6. Tactics can +/- 1-3d6. There's an Adversity/Resolve mechanic that's a lot like the Conan Doom/Momentum system; you can burn Adversity (villains) or Resolve (heroes) on a 1 pt = +1d6 scale. That means the dice pool has a pretty major swing to it.
Rating Traits, Powers
Lightning Lad had a 12d6 and Hulk had a 14d6 as a hypothetical to represent ranges. Characters are represented by Traits (Inherent Traits = attributes; Acquired Traits = skills) and by Powers & Perks (to include gear). All of those are rated in d6. The campaign usually sets a ceiling (12d6 would be a sort of typical Marvel setting). But villains don't have to stick to that ceiling. So a Hulk-type character (as an NPC) could have a Might 16d6 and an Armor of 14d6, for example. If the campaign was defined as a Standard power level (12d6), then a PC could at most have three Traits and Powers at 12d6. Everything else has to be 11d6 or lower. Again, not applicable to villains.

