Each card in the deck must differ from each other card in the deck in at least one of the following: Name, Pokmon Type, HP, Retreat Cost, Weakness, Resistance, Ancient Trait, Ability, Pokmon Power, Pok-Power, Pok-Body, or Attack (where attack cost and base attack damage are considered a part of the attack), with the following exceptions: You may include any number of basic energy cards with the same name
The next most universal option is Rogues Gloves, with its analogue in Dimir, Mask of Riddles, which grants fear as a bonus
So decks built around Chains could still generate tons of card advantage, while everyone else looking to draw cards will be unable to do so
pokemon-paradijs.comMalevolent Fire, for the MASSIVE cost of RRCCC (Even with a TGI Energy Gain AND a Double Colorless Energy, its MASSIVE), does a staggering 150 damage, which is enough to 1HKO almost any Pokmon in the format
it's quite hard to read