Well, first off sometimes they wont But even so the legend rule does apply, sometimes thats okay to copy a legendary creature if it has some sort of trigger you want to take advantage of, and at a bare minimum you are using Jaxis to cycle away a card in your hand since the copy it makes will draw you a card when it dies
Zeraora VSTAR Crown Zenith Sword & Shield #GG43 Ultra Rare Unknown artist Pokemon VSTAR Lightning Pokemon VSTAR Zeraora VSTAR Close Crown Zenith #GG43/230 Ultra Rare Pokemon VSTAR Crown Zenith #GG43/230 Rarity Ultra Rare Crushing Beat L L C You may discard a Stadium in play
(One preposterous example: a creature that cant be blocked as long as the spellcasting player is wearing denim.) See also: 'Magic: The Gathering Arena' Closed Beta Play Begins Now First came 1998s Unglued, then 2004s Unhinged
Hexproof cant save from non-targeting spells and abilities
It was so common and so effective that this card became a must-roster in decks that at least splash white
I think it'll be something that runs Double-Dragon Energy, which makes it a lot easier to use that attack