If this card is Link Summoned using DARK, EARTH, WATER, FIRE, and WIND Attributes: You can destroy all cards your opponent controls
But it is still worth mentioning that many also look at the value, making the Prismatic Evolutions Umbreon, objectively, the superior card.
And a Negate is never useless later in the game as a top deck, unlike the Modal lands where a tapped land wasn't that heavily desired later and the spell isn't playable
The game introduces 4v4 between two teams with 16 monster slots, which is a lot more to juggle than from the usual 6 or fewer Pokmon teams you form, where you're sending out one Pokmon at a time (unless special circumstances in some Pokmon games) to duke it out
You can only use each effect of "Veidos the Eruption Dragon of Extinction" once per turn