Haven't done a post about tier shifts in a while and I have some time this morning so.
Ninetales leaving isn't really too big. Sure, since Pyroar left, we were looking for another good Fire-type, but Ninetales definitely wasn't the replacement. It wasn't really viable anyway, so I doubt this'll make much change.
dundies_stall.gif. But really, I can see this being a cool new member of bulky teams since Pyukumuku has been falling off in usage (it also dropped to ZU in this shift). Quag has a better offensive presence than Pyuku meaning it's not complete Taunt bait and can still hurt things with EQ and threaten burns with Scald. There are still some setup sweepers that it obviously won't be able to beat like Lilligant, and it also has trouble with a lot of Pokemon like Aurorus, Taunt Sensu, etc. but overall I think checking some bigger physical threats will be an okay role for this.
Dodrio is an old friend of PU from ORAS and it's finally returned with a couple new tricks. Now with an extra 10 points in Speed, Jump Kick, AND Swords Dance, this thing is a threat. I'm always bad at predicting if mons will be too good when they drop here but I think it's needless to say that this thing is super strong. Choice Band, Choice Scarf, and SD+Z move are all viable sets and each one has different ways of getting around it. Personally, as much as I would love to have Dodrio, I can't see it not getting quickbanned.
Fun fact: all three of our new drops have gender differences. Jellicent seems like a really cool addition. Defensive sets check a ton and someone even said that with this thing dropping, it might be worth retesting Samurott but that's a little more speculation than I'd like to get into. Offensive sets also seem really cool to me personally as Specs Water Spout has very few switch ins and the ones that can come in get bopped by Specs Shadow Ball or Energy Ball. Can even work on Trick Room teams as another setter and abuser.
This thing was already gone from us, but now there's not a chance of retesting in the foreseeable future so