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2 Tatsugiri ex #081/106 A new addition from Scarlet and Violet , Tatsugiri, the Dragon-type Pokmon, will be available as Tatsugiri ex in a Tera-form version

The standard Shinies showcase the Pokemon with sparkles in a non-full-art design, while Shiny Two cards feature a full-art shimmering illustration

Oracle of Mul Daya Oracle of Mul Daya may be fragile as a 2/2 for 4 mana, but its ability is certainly not fragile

This said, both cards are currently banned in Legacy, and they are both brokenly powerful on their face, so my guess would be that they were simply too good for Standard, rather than being part of a specific oppressive combo