While the title may be an exaggeration, I do find it to be rather convenient that arguably the two best Memory cards for Silvally-GX were rotated from Standard format, being Fighting and Psychic Memory from Crimson Invasion. Silvally does still have Water, Electric, Fire, and Grass Memory (I could be forgetting one), but as far as combating the meta, only Water for ReshiZard and maybe Fire for those stray Metal decks are even worth using. You could maybe use Electropower with Electric Memory, but that's a lot of moving parts. Fighting Memory would be Silvally's best chance against PikaRom/Double Raichu, MewMew could slap without even thinking but Psychic Memory would still help, and Silvally doesn't have a Fairy Memory to hit Dragons. I got to thinking about this because of the new Silvally GX in Dream League, and then I remembered the one that exists already. Silvally GX was kind of built up as this anti-meta card, but never quite got there. Which sucks, cuz he's such a cool Pokemon.