Bulky Geomancy M-Altaria maybe?
If viable, then wheeeeeeeeeeeeeee
Seriously though, Altaria gets too many types
If you thought Altaria got too much, LOOK AT GOD DANG ROTOM. It gets SEVEN types.
Also, going with what I just posted with Rotom getting seven types to play with now...
-Rotom-Wash gets a reliable answer to Grass-Types in the form of Hurricane or Oblivion Wing. It also gets STAB Steam Eruption.
-ALL ROTOMS GET SPORE, the go-to 100% accurate Grass-Type sleep move.
-Rotom-Heat now gets a reliable answer to ground types with Mold Breaker with Steam Eruption. Also, STAB Blue Flare.
-Rotom-Fan gets Oblivion Wing and Hurricane as STAB.
-Seed Flare Rotom-Mow.
-Rotom-Frost now gets Freeze-Dry. And all of the other Rotom Forms do.
-Fiery Dance. Why did I put Magma Storm before realizing that Fiery Dance is a better option?
And now for other things I think are going to be deadly: (aside from legendaries)
-ALL physical Fire-Types now get STAB V-Create. Wait, actually ALL fire types and Pokemon with Fire-type Forme Changes, like Kyurem-B.
-Steam Eruption on all Water Types, including Kyogre. Also, just look at Primal Kyogre's MONSTROUS Base 180 Special Attack. And Steam Eruption's power is boosted to heights that reach the nearest GALAXY in our universe because of Primordial Sea, which also doesn't prevent Burns.
-Meloetta with Boomburst, Focus Blast, AND Psystrike.
-Oh, and imagine Primal Groudon. Because it gets Swords Dance AND Rock Polish, it can set up SD, then just obliterate everything with STAB Desolate Land-boosted V-Create. Also it can Rock Polish off of the speed drops V-Create causes. Ouch.
I have what may be the most unpredictable mon in this meta in my next post, coming in a few seconds or so.
Don't you DARE forget about MEGA KANGASKHAN. While it gets ESpeed, Shell Smash, and a bunch more, PARENTAL BOND MAKES THIS THING A SAVAGE. I mean, it uses anything TWICE, with the second hit having 50% less power, but guess what? Parental Bond is literally Serene Grace and Simple in one ability which allows Mega Kangaskhan to attack two times as well. It can use Shell Smash with the effect of Simple, +4 Atk, SpA, and Spe, -2 Def and SpD, and Headbutt essentially gets the 60% chance to flinch like Serene Grace. It also becomes very unpredictable, now being able to use instant recovery moves like Recover and Soft-Boiled, and also gets Rapid Spin, Glare, and a ton of other stuff WITH ITS CURRENT MOVEPOOL. I dunno if this thing should be banned from this or not due to it getting such a large movepool in conjunction with its amazing ability.
The Immortal says: use the edit button