Signature move: Warm Snuggle
Water/Electric would have made sense because of the thunderstorm that cames with the heavy rain caused by Kyogre.
Sheer Cold is not Kyogre's signature move and never was.
It basically is. Groudon got Fissure and Kyogre got Sheer Cold. Nobody said signature moves were necessarily exclusive moves.
Eruption/Water Spout too, that's why I think Water/Ice and Ground/Fire makes the most sense.
It really isn't. It basically breaks every rule for a signature move
Hey, I can't make you be correct. I'm just saying anybody can notice a theme/similarity with Groudon and Kyogre having respective moves like they do, Eruption/Water Spout, Fissure/Sheer Cold, etc.
Signature move is a move that only a SINGLE (the rare case of a group having a signature move was the Swords of Justice but no longer) pokemon, as soon as other pokemon can learn it stops being a signature move, so no Fissure and Sheer Cold are not and never were the signature moves of Kyogre and Groudon because other pokemon can learn them.
Well, don't forget Wailord and Typhlosion also learn Water Spout and Eruption. But those are more of their signatures than Sheer Cold/Fissure.
Yeah, anyone can see the duality with these moves. It doesn't make them signature moves though.
Okay, let's not get off-track here, the only reason I mentioned them was for Kyogre's most obvious typing. So Mr. Smart Guy, let me put it this way:
Kyogre also learns Thunderbolt, Thunder and Thunder Wave so it could have been Water/Electric. But it doesn't matter anyway, the damn thing is pure Water, GF sometimes dissapoints me.
It made more sense for Groudon to gain the Fire typing due to his connection with Magma and that fact that he dwells deep within the earth's core. Not so much just because he learns a lot of Fire moves. Kyogre doesn't have quite the same connection with Ice, so I can't really see why Primal Kyogre should have gotten Ice just because it learns a lot of Ice moves.
plus he gets something from drought now besides instant solar beam