pokemon card gyarados ex - 045/198 - SV01: Scarlet & Violet Base Set [DOUBLE RARE] Pokemon X Pokemon X Y Promo Single

White-Blue Humans Heres a rough idea of what this deck might look like

In Limited there is only one ranked mode which is Ranked Draft, so not many choices for you there, but in constructed there are two ranked ladder, Standard and Traditional Standard

Gardevoir ex Steam Siege (Secret Rare, 116/114) With striking lineless art and a Yveltal cameo, this Gardevoir ex card stands out as one of the most beautiful from the XY era

Prismatic Defender Matte Card Sleeves help prevent bent corners, surface wear, dust, water, and fingerprints while giving your cards a crisp, clean look

I would suggest throwing this card in an Alela, Artful Provocateur deck