<p>Blissey is probably Electric Arceus's worst enemy. Electric Arceus's attacks will bounce right off the vast rolls of pink, lumpy fat while Blissey can whittle it down with Toxic. However, Blissey will lose to Electric Arceus that carry Substitute to block Toxic. Groudon and Ground Arceus can both take a boosted Ice Beam (albeit it will do a lot of damage) and KO Electric Arceus back with Earthquake. Garchomp that hold a Choice Scarf can switch in on any of Electric Arceus's attacks bar Ice Beam, and smash it with Earthquake. Bulky Excadrill is in a similar situation, but it has the potential to outspeed Electric Arceus in the sand while not being too bothered by Ice Beam. Reshiram laughs off most of Electric Arceus's attacks and can incinerate it with Blue Flare through the Calm Mind boosts, thanks to its sheer power under sunlight. Tyranitar doesn't care about any of Electric Arceus's moves and can obliterate it with a mighty Earthquake. Finally, Toxic Spikes can more often than not stop Arceus from sweeping by hampering it with a crippling poison.</p>