(Don’t mind me casually stealing my own post) I mean, I’m sure this has been talked about to death, but I want to post about the Blue Hero anyway, and a set that I think has a niche in this chaotic meta.
Palafin-Hero
Tera Sweeper
Palafin-Hero @ Punching Glove
Ability: Zero to Hero
Tera Type: Water
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Jet Punch
- Drain Punch
- Ice Punch
- Bulk Up
The anti sweeper sweeping mon, Palafin-Hero boasts a jaw-dropping 160 base attack, comparable to the power of Hoopa-Unbound and stronger than Groudon, Rayquaza, and even post nerf Zacian-Crowned. Though it has a respectable speed tier with base 100 speed, this set of Palafin-Hero relies on its STAB Jet Punch, a 60 BP priority move which, when combined with Terrastilization, allows it to easily leave a large dent-if not outright kill-threats to your team. Bulk up allows you to develop both a boost to your sky-high attack and your defense, allowing you to survive hits from would-be checks and resists such as

Roaring Moon and

Baxcalibur.
For these two, Drain Punch serves as an excellent coverage move and a decent recovery option, allowing Palafin-Hero to last longer on the field. Additionally, Ice Punch serves as alternate coverage, with its main target being water absorb

Clodsire. Each of the punching moves get a slight boost from the new item Punching Glove, while also having the benefit of protecting against effects such as Static, Flame Body, and Rocky Helmet.
The main drawback of Palafin-Hero deals with its ability, Zero to Hero. To access Hero Form, Palafin needs to switch out from their

Zero Form, a significantly weaker fish. This means that your opponent has a free turn to do whatever they wish; set up, get hazards up, attack into a predicted switch, etc. This leaves two options for this set, either leading and pivoting out to a bulky mon such as

Clodsire,

Corviknight, or

Toxapex, or catching your opponent on a switch, leading you back to another pivot. There’s unfortunately no room for Flip Turn on this particular set, which would’ve made for an otherwise seamless pivot.
Good partners
Paladin-Hero appreciates dual screens setup. Grimmsnarl, thanks to its priority screens can come in, get screens up, and parting shot out to bring Palafin-Hero in.
Clodsire is built to be a bulky special wall, but importantly it handles Grass and Electric types that would otherwise threaten a Palafin that isn’t set up yet or is otherwise walled. Clodsire can also double as a hazard setter, allowing Palafin to claim more one hit kills.
Checks/Counters
Meowscarada’s signature Flower Trick is a 70 base power Grass move that always crits and ignores accuracy. This move has a 56% chance to OHKO, which becomes a clean OHKO after rocks. On the other side of it, Jet Punch barely misses out on a 2HKO at +1; you either live and drain/ice punch or die.
Bulky waters: Bulky water mons such as Toxapex, Quagsire, and Slowbro can easily shrug off hits from Palafin-Hero. The first two can easily haze off any boosts and status Palafin in return, shutting down their potential.
Iron Bundle outspeeds and OHKOs with Freeze-Dry, while resisting Palafin’s priority move. Not much else to say here honestly, you should have Iron Bundle chipped or dead before beginning your sweep.