Wow so sm031 Non(base damage 4) with a perplexed dmg and soda machine/mailbox could deal 9 dmg(10 on a crit)? Makes me want to look at him more.

Hmm So if damage dealt is subject to the rule of 3 then how could impervious reduce a damage dealt of 5 to 0? Is it and similar abilities(mu200 Iron Man) a replacement rather than a reduce even though it says reduce?

Damage dealt is not a combat value, so it is not subject to the rule of three.

The gauntlet says chose any standard power, is multi-attack or duo attack a standard power? Also, could I chose Giant size or Colossal if on 2 or 3 of the IG dial?

No, those are combat abilities, not powers.