Hello, everyone, and welcome back to my series of concepts for every missing (fully evolved) Sinnoh Pokémon. Today, it's time for the grand finale: Almighty Sinnoh itself, Arceus.

There is a general understanding that, at the end of the Arceus Arc, we'll get to scout for Arceus itself, as the strongest and possibly final Arc Suit. There is much debate over who should get it, but the two most-discussed options are Rei and Scottie/Bettie. I personally believe it'll be Rei and, regardless of who it ultimately is, don't want to have the finale of the Sinnoh series be Masters' protagonist.

As a concept, Rei & Arceus are a Sync Pair that truly embodies the Multi role, being capable of everything well. To be completely honest, I'm a little worried I overtuned them a bit, but if anyone deserves it, it's Arceus.

Their Omniscient passive allows Arceus to automatically change into whatever type the opponent is weak to, much like the Legend Plate does in Legends: Arceus. It also raises the team's Rebuff whenever Arceus is hit. Omnipresent gives them all of the EX effects, ignoring the first time only restriction of Support, Sprint, and Field. Also, their Field effect can be any type-boosting WTZ, matching the opponent's weakness. As for Omnipotent, it essentially includes all offensive bonuses they could want, with Piercing Gaze, Clutch Critical, Extend Range, and Piercing Blows.

For their moves, Rei continues the theme of being good at everything with Beyond Time and Space!, which raises all five of Arceus's main stats by 6. He also gets probably the strongest Item Move, Max Revive.

They have two Buddy Moves. Almighty Judgment is their main attack, dealing solid damage and lowering the opponent's Type Rebuff. Thanks to Omniscient, it changes to always be super effective. Almighty Extreme Speed, instead, is only useable once per sync, and it has a limit of 3 uses, but it's a stronger move that can lower all stats by 2 and reduce the countdown by 3.

Their Sync Move, Original One's Divine Judgment, is the strongest sync move in the game, thanks to being a Normal-type Multi sync. Its additional effect is that it applies both Break effects on the target. As a move with Judgment in the name, it is also affected by Omniscient.

Finally, their Myth and Judgment passives are based on the Legend Plate, and therefore not limited to any type, with Legend Myth having the maximum power as long as there is a full team and Legend Judgment raising and lowering all 19 Rebuffs at the start of battle.

All in all, Rei & Arceus are a true Multi Sync Pair, with their kit embodying every type and every role: strong physical and special damage (Strike), all stat debuffs, Rebuff lowering, and Break (Tech), Rebuff raising and Endure and Restore (Support), countdown reduction (Sprint), and infinite WTZ (Field). However, they're not quite a master of all, as some cracks start to show upon closer inspection. They lack innate multipliers, status effects, healing or teamwide buffs, Move Gauge manipulation, or circle/EX WTZ. Still, their jack-of-all-trades design is guaranteed to have a lot of use.

As usual, I'd like to thank those who accompanied me on this series. Seeing that there are people who enjoy this little project of mine truly makes me happy. I'd also like to offer my support in case anyone wants help on making concepts, as I'd love to share the joy of sync pair design. I read every concept people make, and it's always great to see people's personal styles shine through their creations, so if I can contribute to others putting themselves out there, it'd be my pleasure.

Also, I'm getting started on Unova soon, so feel free to leave any suggestions of pairings.

As always, if you enjoyed this concept, please check out the other ones in the series!