Kartana, who is Grass/Steel type in the original games, has "Thrash Metal"
Out of the few dozen that exist from various sets and expansions, the best are the ones that can dish out the most damage as well as possessing useful secondary effects and granting a generous amount of maximum HP
Dudunsparce ex Dudunsparce has an attack that costs 1 energy and does 60 damage for each of your opponents Pokmon ex in play, thus providing a way to do decent damage and a deterrent for playing too many Pokmon ex
For example, a d6 is a six-sided die
The Deckbuilding allowed you have free range of all 646 cards in the game, which consisted of 629 cards mainly from Alpha/Beta/Unlimited, with some additional cards from Arabian Nights, Antiquities, Legends and The Dark