Well, first things first, let me greatly apologize for bringing this back up because I only want to get to the bottom of this and I wasnt here at the moment we last discussed this as I had things to do, so there are still things toward these abilities I would like to discuss that I didnt get a chance to address. So if anyone is to blame for restarting this, its me.
Anyways, as far as Atomic Brave goes, I dont even think its Hax copying. The user is just having the opponents abilities apply to them instead of the opponent, so they don't need to copy it. In fact, I think there is something that people are getting a bit confused about. Atomic Brave, from what I know, temporarily gives you an opponents ability. It just has the opponents hax apply to the user of Atomic Brave, allowing the user to use it back on them and thats it. Basically, no hax is being stolen its just its effects that are taken. The opponent can still activate their abilities it just won't benefit them at all, only the user. For example:
Drago fights, em say, Goku. And Goku tries to use a Kamehameha wave on Drago. But because of Atomic Brave, Goku's Kamehameha wave doesnt even activate as it will instantly go to Drago. Drago temporarily gains the move, uses it back on Goku and Goku regains the move. And its rinse and repeat. The moment Drago uses it, Goku will be able to activate it again. It will only just keep going back to Drago. Basically, Atomic Brave only lets the user keep an opponents move until they themselves use it back and then they lose it. They don't keep it permanently.
And its automatic as you only need to use it once and from then on, any hax the opponent tries activating will be instantly given to the user of Atomic Brave so that the opponent doesnt even activate it at all. So its not a matter of speed, Drago just has to activate the ability in time before getting beaten/stomped. However, from what I can think of, we can place 2 limits on it.
For one, anyone who has a type of evolution hax or transformation that makes them a different kind of being will break the effects since Atomic Brave specifically targets one target and one target only. Aka, when Clayf used it on Gorem, who then evolved into Hammer Gorem, the ability broke because it only worked on Gorem, not Hammer Gorem (Tho, this doesnt mean the ability can't be activated again to work a second time). Plus, since we've only ever seen Clayf use it on one opponent, theres no reason to suggest it can work on a team of combatants, and the same thing will apply to Drago and the others too. And another limit is that Atomic Brave will have no effect on higher tier beings, just so we can prevent Drago from automatically stealing hax from 2-A's and anyone from Tier 1.
And as for Evil Copy, its the same thing. However, I think we can chalk Evil Copy to be a combinatation of both Statistics Amplification and Power Mimicry since the user is able to become a stronger version of what it transforms into (plus Contestir was able to copy Dragos power despite being absolute fodder compared to him). And if you want an even better example, imagine Evil Copy being something like Ditto from Pokemon. So if the opponent is only slighty/decently stronger than the user, Evil Copy should still work. But regardless, Evil Copy will have no effect towards characters of higher tiers so Drago isnt turning into any decently strong 2-B's, 2-A's or anyone from Tier 1. Plus, another weakness is that Evil Copy cannot copy an opponents weaponry like Battle Gear so via Verse Equalization Evil Copy cannot copy weapons or anything that isnt naturally apart of the opponents being (like a Shinigami's Zanpakuto or Thors Hammer for example). And if the user of Evil Copy even tries to copy those things, then the user will actually transform back into their original form automatically.
Does this clear things up a bit?