I decided to look up some details on Bulbapedia and came across this:
"Kyurem's origins are much different than those of the other two. The third dragon came down to Earth from an icy meteor and crashed into a place called Giant Hole. An old legend in Kagome Town describing Kyurem claims that it would take people and Pokémon away from the town and eat them; this is why the town is now surrounded by a giant wall. Another claim is that Kyurem is the corpse of the original Dragon Pokémon after it had split into Reshiram and Zekrom."
If the last part is indeed true and the whole space thing turned out to be merely myth, then it is highly possible that Kyurem is in-fact the Tao Trio's "master." Pretty creepy concept with the corpse idea IMO. Maybe when the original dragon split, the being that would come to be known as Kyurem fell to the earth from high in the atmosphere and the towns people believe it to be from space? Hmmm....who knows...
Anyways, I really like this idea maybe even more than the whole space thing. I hope this is the actual story behind the Tao Trio.
Only issue I find with that version is the dragon splits into two forms not three and not three but leaves his old body discarded. Ying and Yang that was formed are the two halves to one body.
As for the master clause, he can't be a master as he is weaker.
Also Wuji is a Fan created idea not Nintendo's.
It all fits into the speculation, but everything doesn't correlate to one another the way we think they do. Also Ice uses a chemical reaction to stay how it is so it does produce energy but the energy is being released rather than absorbed which forms the Ice.
A solid's molecules are still moving but very slowly. The process of freezing still requires some form of molecular energy to produce so it being the absence of energy isn't 100% viable.
Also opposite of Balance is imbalance. Balance is easier to maintain with two equal powers rather than three especially with one of the three being unequal in power to the other two.
I did notice you brought up his difference in attacks, another thing to point out is that other than Giratina, all trios learn similar attacks at roughly the same point. If not then there is an apparent pattern that they follow. For instance I forget which trio it is, but one learns a damage dealing attack while the other two learn status attacks, then a second gains a damage dealing attack while the other two get status then the last gains its attack while the two before get status attacks.
If they don't follow this then as I said before they learn similar attacks. I.e Fire Fang, Thunder Fang (Reshiram and Zekrom) or Beam/Bolt/Thrower for the Ice/Electric/Fire comboes.
Kyurem's attacks are notably weaker than Reshy and Zekky in this regard.
As a Stand alone it is pretty BA. And for other legends that appear Post Game, Gen 2 the opposite Bird was available, Gen 3 Latios and Latias Rayquaza, The Bird Trio in the remakes. Gen 4 Giratina, Regigigas, Cresselia, Darkrai. I know a lot don't have anything to do with this, but what I'm saying is that they never release all the legends Pre End Game. They leave pretty much all of them that don't pertain to the story for end of game events and captures. If you could catch everything pre End game then there isn't much point playing Post game story.
