Oozeru: Good stats and its type makes it very resistant to status as mentioned previously. It can heal with Bear Hug and Molt, and I honestly think there is merit to running both of these on one set. It doesn't have good STAB options or utility attacks though, so most of the utility it offers is just walling things. Haunt Back and its great stats let it probably trade with most things in a brawl which is often all you can ask for from your tank. Wild Paradigm seems usable enough but it's not really a great OTR mon and generally needs to suicide in order to pivot. Oh, and there is probably a gimmicky Momentum Armor set using Build Muscle to become more and more swole while also powering up your physical attacks, that seems pretty fun but not good. Honestly Oozeru disappointed me a bit, it's definitely a usable tank but not too interesting so I'm a bit split on it.
Lilyrex: The generator seems to think this is a Slime-type, and gave it a lot of Slime moves. And nothing else, apparently. Still, Slime coverage is not bad for it to hit Beast types, and it has nice offensive stats and a very workable offensive STAB combo so it could still put in work. Something interesting it could do is use an attack, then make use of its high Speed to copy it with Oozing Vengeance to use it again, with a higher crit chance. Otherwise it just seems kinda weak. Its abilities are usable, but don't do anything to remedy its lack of power, and 80 power STABs and not being super able to make use of Salt Shaker is far from enough to break through defensive threats, we could do a lot better tbh.
Mergull: Mergull can be an effective special tank and wall. While it has pretty pathetic physical bulk, an issue even further compounded by Nutrition Recovery, it's not that much of a problem when it can completely kneecap physical attackers with Conductive Barbs, Pollutant Emission, or the combo of Maiden Voyage + Lethargy, although making use of Conductive Barbs is probably better. It can also be played as a slow breaker making use of good Special Attack and decent STAB combo, but its attacks themselves aren't really that strong, and it's a role that I think Tarpidgeon is a bit better at. Definitely can be cool though.
Tarpidgeon: In terms of stats, Tarpidgeon seems almost strictly superior to Mergull, being more minmaxed. It even has a similar ability to punish physical attackers, being Acidic Body, although it's notably less bonkers than Conductive Body. The big draw on this one is Hydrothermal Eruption, which sets up Hydrothermal Terrain, powering it up further. This makes it a good tank that can deal some nice damage. Unlike Mergull, it doesn't have a recovery move, but it's bulky enough to still be a good Ghoul-type switch-in. I'm not certain which of these two Avian / Piscine mons I like better, as of yet.
Arengene: Really has phenomenal stats, but average abilities and typing. Dust Surfer is not that useful without a good Dust setter, so Fiesta Pescado is probably what you want to go with. This one has some fun gimmicks, like using Parasite Eggs, Snare Trap, then Dying Dance as the opponent falls asleep and you can bring in a sweeper who appreciates the boost. The probably more conventional set is using Snare Trap then pivoting out with Slippery Rush or just hitting with Primary Blast. Snare Trap is an excellent support move for strong breakers as Artificial-type synergizes well with types like Ghoul and Piscine. The last big gimmick this mon has is Take to the Skies. Although it's weak, it makes the opponent Avian, and therefore weak to Artificial.... and Snare Trap. So by going for Take to the Skies on the turn Snare Trap is set to hit, you guarantee a super-effective hit as they won't be able to simply switch out afterwards. Damn cool, I say.
Spirox: Spirox seems okay. It can heal up with Bandage while being really annoying with Graceful Reaction. Nightmare Dust is an annoying move that can guarantee a sleep on a foe with Graceful Reaction, although it's pretty useless after that point, so you'll probably get more consistent use out of running Jumpscare to spread Attack drops around. Spirox has pretty bad defense, so it's not like this is broken or anything. There is probably some merit to a physical set, even with only 81 base Attack, cause Backbone can help you out a lot there, you got a good STAB option that lets you duel faster threats (Horror Bomb) and a priority option in Stone Pitch that prevents Ghouls from revenging you. Also, it has no Artificial moves, so you'll need Secondary Blast. That's about it. I'm not really smitten with this one, but it's okay.
Valianch: Really mediocre stat spread and typing. Its movepool is not bad though. Fungal Fatigue and Ivy Swipes are both usable STAB options, and it has some usable coverage too. Mortal Strike is very potent on it for putting out serious damage, but it doesn't really have effective ways of inflicting Bleed itself, so it would need support in that department. Plasmodium is also interesting to make it accrue a lot of boosts and hit very hard, but it's still a fairly slow and vulnerable setup sweeper. It's not the worst ever but it really didn't luck out and looks pretty underpowered.
Fluffian: STAB Beastly Roar is a very powerful move, dealing good damage and confusing the foe. Pollutant Emission lets it inflict Acid consistently, punishing physical attackers that try to take advantage of its low Defense stat. Gastric Fang is an alternate option for inflicting Acid that gets STAB, but it is less consistent. Reptile Tail is a viable coverage move for Slime-types, and it even has boosting options in Scale Power and Claw Sharpen, or perhaps more compellingly Technology's Madness which lets it spiral out of control against passive mons. Sweeping sounds even more appealing if you can get an Erosion boost, although it can be hard to do that consistently. It can also pivot out with Slippery Rush. All of this sounds great, but you still need to remember that this is a slow tank without recovery, with an exploitably low Defense stat, somewhat niche abilities, and a mixed bag of a typing. It has some neat tricks for sure but I'm not sure it can measure up to some of the crazy stuff we'll surely get.
Emeralberich: Excellent stats, with a type that can be quite potent offensively. Horror Fan is a good ability for it as well, giving it two immunities. Its movepool is a bit disappointing however. It has no good STAB options, so it will need to rely on Primary and Secondary Blast. Awesome special setup moves in Clean Disc Slice and Creepy Crawl are completely wasted on it. It's probably best with Energy Bash to get a sweep going, and maybe Acidic Spit or Wheel Wrecker as coverage to destroy Mineral-types. It's very straightforward and not too interesting but undoubtedly would be useful just based on the merits of its stats. Fairly neutral on this one.
Metamberardi: By using Wild Paradigm, it can flip its 18 base Speed to become the fastest mon on the field. It can also make use of its bulk with Reform, or more spicily with Nutrition Recovery, healing it for 2/3rds and immediately switching it out with Escape Root, bringing in something else and effectively bypassing the defense-lowering downside. This combination of qualities would make it an ideal sort of dedicated setter for a "Trick Room" team and a very interesting sort of slow, bulky pivot. While it does have good bulk, its defensive typing is not the best, but it is definitely capable of going offensive. It has a strong Mineral STAB in Excavation and a number of good Arthropod attacks like Toxic Shot, Trilo Bite, Sneaky Spray, and others. More interesting pivoting options include Fell Branch + Escape Root and Mineral Gambit. It's super interesting, but 2/3rds healing + pivoting could get out of hand.
