2) Since pao got banned, who is taking the trophy for number 1 wallbreaker
I've been using this Meowscarada set for a couple weeks and I really enjoy it.
Meowscarada (F) @ Choice Band
Ability: Protean
Tera Type: Dark
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Flower Trick
- Sucker Punch
- Knock Off
- Play Rough
Flower Trick and Knock-Off both hit really hard, and Flower Trick in particular is great for dealing with Curse Garg/Dondozo. Tera Dark Knock-Off doesn't get the same 2hko's as Tera Dark Crunch, but it has the utility of removing items and therefore punishing switch-ins a little more than Crunch. And after a layer of hazards or two, the loss of damage (as opposed to Chien-Pao's Crunch) becomes less of an issue. Play Rough is there for coverage, and Sucker Punch is nice for Swift Swim/Chlorophyll sweepers and Dragapult. I don't use U-Turn because I find that to be a better option on a pivot set whereas this set is meant to play as more of a breaker.
Another one I've seen a lot that is pretty effective is Tera Flying Roaring Moon, although that's probably more of a sweeper than a breaker. I don't use it myself so I don't have the set but I'm sure somebody else can share it.