A couple of things:
In your skeleton, you overstate/exaggerate some things. For example, the line "Judgment is preferred STAB as 100 base power off of a base 120 special attack, compounded with both same-type attack bonus and Zap Plate boost, can rip through a vast majority of the tier" is an overstatement, as "vast majority" implies that Electric Arceus has a positive matchup against 95% of the tier, which simply isn't true. Also, in your overview you mention that Electric Arceus can check/counter Ho-Oh, Kyogre, and Yveltal, when in reality it doesn't enjoy switching into any of these threats (so please remove "counters" mention in the overview). For example, Band Ho-Oh can do 65% to Electric Arceus with Sacred Fire while Scarf Kyogre easily 2HKO's it with Surf. It can certainly check these threats to an extent, but it does not counter any of them and rarely can switch into powerful attacks in general due to its shitty defensive typing. Even Yveltal can kill Electric Arceus after Stealth Rock with Dark Pulse+Sucker Punch (requires prediction but Electric Arceus clearly cannot switch in safely).
You do a nice job of emphasizing the offensive prowess of Electric Arceus. Mention the downside of using an Arceus forme that cannot counter anything or even safely switch in most of the time, and therefore cannot serve as effective a glue like other Calm Mind Arceus formes can (like Grass Arceus). Also mention the benefit of having a sweeper that cannot be crippled with paralysis. Electric Arceus does provide a switchin to Thunder Wave spam from Pokemon like Klefki and Thundurus. Finally, add a little meat to "usage tips." When is a good time to set up, and when is a good time to simply attack or switch out? For instance, mention that spamming Ice Beam when your opponent's Groudon is completely healthy is usually a better play than setting up prematurely (just to get you started).
This is pretty close to getting stamped by me though, you are definitely motivated to do this and have good information. Just clean up/add the things I mentioned above.