pokemon card greninja ex X & Y Promo Ultra Rare Ash-Greninja XY133 Exclusive promo Rayquaza NEW Mega Greninja EX Card

Back Sephiroth, One-Winged Angel Legendary Creature - Angel Nightmare Avatar Flying Super Nova - As this creature transforms into Sephiroth, One-Winged Angel, you get an emblem with "Whenever a creature dies, target opponent loses 1 life and you gain 1 life." Whenever Sephiroth attacks, you may sacrifice any number of other creatures

So whats the error on this card

Most of its early- and mid-game cards like Paldean Wooper, Arbok, and Grifaiai poison your opponent's active Pokemon, with Grifaiai in particular being able to do so from the bench, while Paldean Clodsire ex does double damage if the opponent's active Pokmon is poisoned

(10/14/2022) The mana value of a melded permanent is the sum of the mana values of its front faces

The glorious action pose that Mewtwo strikes on this card is breathtaking, as it charges up an attack capable of destroying anything in its path