Its Phantom Star VSTAR Ability allows you to discard your hand and draw 7 cards - thats a Professors Research [Celebrations] baked into the card
The original source has been a bit elusive, though
Furthermore, its Mega Evolution form, introduced in Pokmon Omega Ruby and Alpha Sapphire, gave it a renewed tactical edge, featuring improved speed and attack capabilities
some of them are dominating meta threats while others are underpowered cards that are difficult to build decks around
This critically gives blue a way to interact with uncounterable spells since the targeted spell isnt actually countered
In terms of playability, this One Piece card game reminds us of Cardfight Vanguard, particularly the format around the mid-2010s