I think this thread has been dead for too long, people probably forgot about it.

Eiko guy, I'm not saying this riddle is bad, it's just that it doesn't provoke very much thought. But then again, it shouldn't be impossible to solve, so I'll try to summarize what we've got so far:

The riddle:
You can't surpass me
and the power I wield.
Try as you might,
I'll resist your struggle.
I do my job constantly and without thought.

Wrong answers:
NORG's orbs
MobileType 8
Odin
X-ATM092
Seifer
Hexadragon
Helix
Watts
Zone
Berserk
GF
Elixir
Gerogero
Phoenix
Doom
Hero-Trial
Tonberry
Chimera
Propagator

Hints / notes:
H sir (alternatively hsir)
Word play
Has to do with pronounciation
The riddle says what to do with it?
Only a minor hint
The answer is a thing
The answer is never fought
There is more than one of the answer
The answer is retarded, although not in the general meaning

The answer is one of several "retarded" things which are never fought, but it's still powerful, maybe even invincible. But, since it's never fought, it has to be found out another way.
The answer also has a 'job' or a duty that it performs without questioning or thinking about it.

At one time, I thought that it could be that barrier thing in the Timber hotel, but there isn't more than one of those AFAIK.

I'm really not sure about this one, hopefully somebody else will benefit from my summary though