The card art matches Gyarados's signature move, as the card's Hyper Beam deals a whopping 100 damage
Maleficent, Monstrous Dragon The strongest of all Disney Lorcana promos
(Though looking at said list, there's a few that don't have any Archetypal clauses on their usage, such as Chaos MAX, Tetrogre/Mind Augus, some of the Nekroz monsters [on-field anyway, but iffy on how you'd fit them here], so I guess that works.) I'm not implying that you can't use this with non-Effect ED monsters either, but most stuff nowadays usually are Effect Monsters and can't see a reason where you'd want this over Advanced Ritual Art, except for it being less restrictive on Levels (you can exceed the limit if needed)
Later in the game, you attach a Monster Role token to it
As you can see, the numbers vary wildly