Pokémon: Kyogre
Types: Water
Abilities: Drizzle
Stats: 100/90/90/105/125/60 (BST 570)
Movepool Changes: -Water Spout, -Thunder
Description: Kyogre has received pretty significant nerfs to stats in being quite a bit less bulky (albeit still being bulky), less strong (albeit still strong), and much slower. This in addition to the loss of Water Spout nerfs Kyogre's scary Choiced sets heavily, but it still has 130 Special Attack and Drizzle-boosted Origin Pulse, so it will still be a powerful breaker if it so chooses, and a decent Scarfer, but now common SpD walls and Water resists such as Slowking, Pex, Ferrothorn, and Blissey will put a stop to it. Thunder was removed to worsen its bulky Water matchup, now relying on Thunderbolt, and overall, Kyogre seems manageable. As a setter for Rain teams, I'm not sure how it vs Pelipper would shake out- Pelipper has Hurricane, Roost, Defog, U-turn, and a Ground immunity, while Kyogre is way bulker, way stronger, and has access to setup. I'd personally still use Pelipper for the utility provided, but Kyogre might make its way onto slower paced teams. We'll have to see.
Pokémon: Groudon
Types: Ground
Abilities: Drought
Stats: 100/130/120/80/70/70 (BST 570)
Movepool Changes: (Precipice Blades now has 110 BP to match Origin Pulse, if that's ok), -Rock Polish, -Eruption (for consistency with Kyogre)
Description: Groudon is substantially slower, quite a bit weaker, and frailer (though not by much). It seems like a big boon to Sun teams, with better bulk, improved offensive presence in comparison to Torkoal, and a typing that has great synergy with Sun’s offensive Pokémon. I think that it’d have a nice niche with high bulk and overall just a good well rounded stat spread that gives it versatility.
im not subbing for rayquaza, but imo far and away the biggest issue with Kyogre is having access to Water Spout which just gives it Vish-tier power- I really am uncomfortable with submissions that have it simply because of how absurd auto-rain+Water Spout+high SpA+access to choice items+all the coverage it needs is in terms of power. please keep this in mind