First off, Arceus EX is weak against Fighting Energy
Two mana to cast and one mana to activate sends one land to your hand and a variable number of cards into your graveyard, the perfect place to reanimate them with some eldritch spell
ABILITY: Resolute Heart: If this Pokemon has full HP and would be Knocked Out by damage from an attack, it is not Knocked Out, and its remaining HP becomes 10
Although the costs have been on the decline overall, the highest-priced cards have remained in generally the same place
Still, I would find ways to get out to them and compete, and when there are hundred other players, and half of them have full sets of power, youve gotta adapt
Artwork-wise, I prefer the Belle & Beast card, but only marginally, mostly because the dual-ink effect comes across much better with the blue-and-red contrast than with yellow and grey