Team name: Team Black Eye (name of an actual galaxy)
My name and title: Ex-Champion Andrell
Andrell's Backstory: Was the long time undefeated champion of the region until recently when he was forced to retire for reasons unknown to the general public (his organization).
Team goal: To use Arceus, Dialga, Palkia and Giratina to create a new living-breathing world filled with new kinds of pokemon (a bit different than Cyrus's goal as he wanted an empty space for himself) as we believe that the old world is slowly dying out (resources slowly running out, land being used up, overpopulation, increasing crime rates, pollution etc.). This will be accomplished by using a collar-like device which forces a pokemon to obey (as Cyrus mentioned that this can't be accomplished if they're caught in pokeballs as it will limit their powers) and controlling the legendaries to create a new world. Arceus to create the new pokemon and life for the new world, Dialga and Palkia to create the space and time of the new world and Giratina to create a new distortion world to balance it (this will cause them to use up most of their power and go back to sleep for many years). My team and I will take over the new world and create a new civilization (a new utopia) where I will rule. The old world is still there however temporarily taking away the legendaries may cause some kind of distortion and/or damage to the old world (perhaps even destroyed completely) but we won't bother what happens to it then (it's going to die out eventually anyway).
My Pokemon:
Zoroak lvl 69, 90, 100(will look like my last pokemon Gengar or Giratina when he is obtained)
Dragonite lvl 65, 86 (will be replaced by Dialga lvl 100 when he is obtained)
Gyarados lvl 62, 83 (will be replaced by Palia lvl 100 when he is obtained)
Kangaskhan lvl 68, 89, 100 (with Mega Evolution)
Genesect lvl 66, 87 (will be replaced by Arceus lvl 100 when he is obtained)
Gengar lvl 64, 85 (will be replaced by Giratina lvl 100 when he is obtained)
Note: I will battle you at least 3 times. The first time my team won't be as strong (around lvl 60) then again with them being around lvl 80 and one last time with the legendaries (all lvl 100).
Conclusion: Should you fail, my team and I will create the new world and take over it while the old world faced a space-time distortion and a bunch of calamities dooming it to destruction while the legendaries are asleep for several centuries.
Should you succeed, after defeating my legendary team and disrupting the creation process, a space-time distortion occurred which created a portal to an unknown dimension sucking me in. I disappear and what became of me is unknown while the legendaries are freed and my team has been disbanded.