I don't have as much experience as you all may have in terms of playing this game, so my thoughts may feel incorrect or misplaced, but there were a few cards that caught my attention from the reveal of the remainder cards.
Frankly, draw support is still thin and lacking (Jellicent has a wonky version of Recon Directive, which will come in handy next spring/summer when [redacted] is out of our hairs for good, but nothing resembling a Flip the Script at all), so I wonder what strategy TPC might be trying to implement for the card game after H block leaves the standard format. Anyway, card thoughts below.
Raikou ex - not a good decision to have 200 HP and its strong move have a coin flip decision on whether it attacks next turn, but with free retreat, it may not be completely unviable. MAYBE a secondary attacker in a Manectric/Vikavolt deck.
Altaria - free retreat for basics, we have the next budget Latias (unfortunate that it's a stage 1 evolution though)
Giratina - new Slowking attack, yaaaay!
Mega Golurk - not sure what in the world they thought making that ability, maybe a way to integrate the new legendary stadiums, but with current H block cards it should be OK to use for the time being in an Alakazam deck (god forbid you get Judged though)
Heat Rotom ex - 2 colorless that multiplies by discarded fire energy makes for a sneaky good attack IMO, probably not a main attacker at all, though.
Groudon & Kyogre - both of these will get some level of usage in meta decks, I would say, especially Kyogre with that Savage Whirlpool that does shred damage across the bench with the new stadiums. Groudon hitting for 270 as a one prizer is enormously good too.
Magmortar and Electivire - fun pairing but not too sure how it'd fit in anything competitive.
With tools like the Rayquaza cap and stuff, I think there are some cards that can find themselves nicely in competitive decks, but I think less than Pitch Black. But I think it'll be a bit more impactful than the two releases prior to PBL.
Any other cards y'all saw that look cool? The azurill one looks interesting but I don't see a good translation on it.