A trainer's story [21]
In order to accomplish team magma's goal, which was to expand the amount of landmass and gain absolute domination over the world, the boss needed a legendary power - groudon, and to awaken groudon, he had to sacrifice a soul of fire.
Lucario's World of Pokemon; Part Two--Religion
Now as i said, there are variations, such as those who believe that arceus, palkia, and dialga exist as equals, or who even think of beings like groudon, kyogre, and rayquaza as being on the same level as these creators.
A Trainer's Tale - Chapter 38
It's for spirit, the flygon that sacrificed herself so i wouldn't fucking die when groudon attacked us. what would have happened if i died then?
The Orphans - Chapter One
groudon, kyogre and rayquaza were waging war. and the result of their war was what had brought about the terrible snowstorms, rainstorms as well as heat of the past three seasons.
The Sacrifice
Luckily you didn't go trying to catch groudon, he would have just tossed a boulder at you and went about his day." she growled and thunder struck around her.
After the Storm - Part 22 [The Interview - Part 2]
Anyway, based on the legends that you were taught, you'd know that groudon and kyogre were once locked in a world-ending grudge match that was ended with the interference of rayquaza.
POKE'MON MYSTERY DUNGEON ADVENTURES Chapter 5 : Expedition Adventure : Legends Of The Time Gears :
Which chatot then said ",well, not this kind of danger not against groudon." which loudred then said ",groudon?! who's groudon?"
Pokemon: QATM Chapter 2
That last one was able to even beat cairo, and i had nothing to take on that groudon; gemstar lost to the alakazam earlier on in the battle, and thorn got stomped by groudon anyway."
Legend High-Chapter 4
A groudon morph was he. apparently the male students think shirts are beneath them 'cause the groudon was not wearing one, letting his muscles show to the world. he had decency and wore jeans, but they were torn at about knee level.
Pokemorph Virus: Sootopolis
groudon orders kat and mike to go to sootopolis, where wallace, the gym leader of sootopolis, is in control of the hoenn master ball.
The Human Species - BAD END II: 'Negligence'
As the third generation came along, the mighty legendaries groudon and kyogre rose from the bowels of the earth, resuming their unending battle.
Dragon's Heart Ch. 2
Even if groudon and kyogre had the more important duty of creating a place for the rest of arceus' creations, rayquaza was happy being the guardian of the sky; it allowed him to be by himself, with no one to tell him what to do.