they are purple in the 1999-2000, thats the main colour difference You mean in general all over the card right
As red has many potential avenues for chipping away with small bursts of damage, Ojer Axonil imbues those bursts with much greater strength, Replacing each instance of damage with Ojer Axonils current power
While it may not be a starter or legendary, its unique design and the strategic niche it fills continue to resonate with players, making it a constant presence in the Pokmon universe
Official announcements about upcoming expansions and events are also published there
even the artwork, despite the rainbow colouring and textured foil treatment, is based on the previous card, and is also credited to aky CG Works
Mewtwo packs simply offer a stronger starting collection, which will make winning games easier (which gets you more XP to level up with)