I remember a few years back when Giratina-GX's Chaos Wheel was a legitimately really good attack.
Granted, it also had Renegade Pulse which helped in certain Mega match-ups, but Chaos Wheel shut down so many strategies.
Smash cut to now, and CRI Mismagius has it too - but its not seen...
I can't really pinpoint my most disliked right now but the Chikorita family is a contender.
Design wise? Cute as heck.
Play wise? Its like trying to cut a house in half with a dull butter knife.
Well Great Potion is terrible, but that Golisopod has potential.
Water, hits Reshizard for knock-out on with Band (or without on Switch), synergizes with Quagsire to accelerate energy, Wishful Baton is still a thing - that is awesome.
Why burn, of all things?
I mean, I dig it; Burn support is far less than Poison.
I just find it... bizarre to apply a special condition to itself. Y'know?
Victini makes some of the Dragons actually usable. DDE + one round of Victini attacking accelerates basically anything in Expanded. Be a lot better if it was a Colorless for that attack but Rainbow Energy exists, so it's not all that bad.
I wonder... the return of Giratina-EX?