Has any of you used or seen anyone using revival blessing unironically in OU?
Because I haven't seen anyone using it, so I believe that my prediction that this move will not get banned is probably true.
The pokemon with access to this move just aren't that good.
I'm mid-ladder, but I've seen probably 10-12 teams out of 70-ish use it. Lots of Leppa Pawmot and a couple of Leppa Trick Room Rabsca too. I can't comment on anything other style since I've very much been building one archetype of teams, but it does make stall a loss on preview against some teams.
In my eyes, you need to a mon to at least revenge if not check every single one of the opponent's team, in order to win a game of equal-ish skills (if your team has nothing that ever beats a viable threat without heavy sacks, it's probably not a great team). With Revival Blessing, you need to keep your team in a position to either beat every single mon twice in a row with one or less sack, or outspeed and kill Pawmot/Rabsca in one shot. The way that tends to play out in stall is a wallbreaker comes out (think Roaring Moon, Chi-Yu, Chien-Pao, pretty much anything that 2HKOs most of the tier from the start), you bring the counter in or (rarely) sack, wallbreaker gets sacked in exchange for half its counter's HP (pretty easily achievable in most cases if you look at the calcs for said wallbreakers). Pawmot or Rabsca comes in, revives it either for free or while sacking said Revival Blessing mon, and can then use it to force at least another sack. And with tera around, it's much easier for them to get a couple revives off if that's the wincon, or force more game-winning 50/50s.
Essentially, with Revival Blessing around the concept of defensive counters is just... invalidated. It also makes defensive wincons very, very difficult to achieve. Like, you essentially cannot afford to make sacks against a Revival Blessing team a lot of the time, because in the endgame they could simply choose whichever of their five other Pokémon is a wincon against the remains of your team. The best way to avoid this is, you guessed it, setup sweepers behind Shed Tail, priority on everything, hazard stack, etc... I personally don't think this is a healthy thing for the meta albeit from a very defense-biased PoV. I'm not gonna claim RB is broken nor that it should be banned. I actually think it's not too bad to deal with if you're running HO. That said, it's just another of many factors that's highly restrictive in team building and makes HO far and away the most consistently viable style.
I do also think it's only gonna get more dangerous the further we get into the meta, however. I think broken-checks-broken setup sweepers might stop it getting out of hand just yet, but I expect that more high-ladder players will start being happy to use a team slot in exchange for one or two revives on the wincon of their choice. It's not like Pawmot is useless outside of it either, since its attack and speed are decent enough to be at least kinda threatening to most, and Rabsca hits well enough and can usually tank one neutral hit minimum. They're not good outside of it or anything, but you're running a single meh team member in exchange for the ability to choose almost always at least one, sometimes two potential wincons to just... bring back in lategame.