I honestly thought I’d vote xerneas here but I’m actually going Kyogre. The more I think about it, Kyogre has more of a repressive influence on teambuilding due to its naturally positive matchup against NDM, Yveltal, Zacian-C, and Ho-oh. With no primal Groudon in galar, it’s much easier for kyogre to come in and spam water spout or origin pulse and just decimate things. It also has the massively powerful calm mind defensive variants which can better deal with its most common check in etern. It can also run life orb or specs on webs teams and one-shot mon after mon. I think it’s more versatile and more repressive on the builder than xern is.