Festival Plaza (Stadium) Pokmon with any Energy attached to them cannot be affected by Special Conditions, and they recover from any Special Conditions
Storm, Force of Nature Storm is a broken mechanic, though limited to the handful of storm cards that actually exist in the game

DM-era stuff that has remained retained (aah): Valkyries Armor Leon von Schroeder's entire Deck of fairy tale references (including Thorn Princess, a card that can never be released, because it's basically "Normal Summon Big Eye") Vivian Wong's entire Deck (including Dragon Lady, basically Envoy of the Beginning Lite, and Dragons of the Four Winds, a QUADRUPLE FOOLISH FOR DRAGON to boost the ATK of a monster by 1200) A few random pieces of Amazoness support A few random pieces of Harpie support Diamond Head Dragon A couple luck-based Joey cards (almost said Joey-based luck) Five of Rafael's cards: Two pieces of direct Guardian support (Backup Gardna and Guardian Formation), Self Sacrifice (My Body as a Shield but better, turning one card you control into a Beelze/Majespecter abomination for a turn for 1K LP), Nightmare Binding (drop a monster's ATK by 1/3 and gain that much LP, will probably just be fixed at 800 like what happened in the show), and Salvation from the Grave (banish any 5 cards from your Graveyard to negate an attack, with no OPT

Damn is a Terminate that can be turned into a Wrath of God, which is why its not on the list
If the toy has wings, it then has the flying ability
Someone playing a combo-heavy deck will have to decide whether to stop their combo or allow the Maxx "C" discarder to keep drawing cards