Tier 1
TPC Comments
While the nerf to Salamangreat doesn't seem huge, it will be noticeable (especially against decks like Resonators that can produce 4-5 interaction boards [which tends to require seeing as much engine as possible]). However, since Salamangreat still has plenty of space for techs like Loading... and Loading... , I expect the deck to still be a solid pick for the meta.
Salamangreat is finally usable again, and it comes back to a potential rival in Resonators. It will be most likely be a skill-based matchup, but I would guess resonators would have a small advantage. Despite the nerfs, Salamangreat is still incredibly strong, as it can run handtraps to disrupt Resonators while still having a well-protected Turn 1 combo. Going second into Resonators' board will be a struggle if you open no handtraps. In conclusion, I think Salamangreat will be strong, but I think that it will have competition with Resonators.
Tier 2
TPC Comments
HEROs have officially become the floodgate turbo deck. if we tried to play the deck "fairly" (with non-floodgate techs), it would probably be worse than every other Tier 2 or higher deck. However HEROs have an instant-win button in Loading... (DDG), a card that basically prevent Salamangreat, Predaplants and even Resonators from playing. If you draw it going first, so this deck takes a lot of free wins. HEROs aren't really consistent at drawing these techs, but the fact that DDG has basically no counterplay makes it a pretty good option in the current meta.
HEROs are probably the worst of the "good decks" right now. The Skill is still strong, providing the deck with free Armed Dragons and Loading... plays. However, bad hands will be almost unplayable into Resonators or even Salamangreat. To combat this, HEROs are running floodgates like Loading... and Loading... in tandem with its guratneed plays from its Skills to compete against meta decks.
Predaplants did very well the past weeks )mainly in the formats where Salamangreat wasn't allowed). The reason is that it has a very good matchup into Resonators. However, now that Salamangreat is back, it will struggle a bit more. Ot's still a very good choice for the meta but it all depends on how dominant Salamangreat will end up being. The switch to Loading... (as was made in the last KC Cup) is no longer an option since Loading... is too important for the Resonator matchup.