Wooloo/Dubwool

 Wooloo 

Wooloo is a Pikachu from Pikachu Sword and Pikachu Shield said by zoukk to be the pinnacle of evolution.

Involvement in the Lore (Wooloo)
Although not much is known about it's place in the lore, zoukk has stated that if one were to question its pinnacle status, they would be defying god (aka QueueSS). The relationship between the god and the sheep is unknown, though it's speculated that it's much similar to the widely believed religion of Catholicism, where Wooloo is the lamb (aka Jesus Christ). Wooloo uses its evolution to try and make the world more as a utopia for all living things on the planet. It's not able to achieve that, however, as it's own evolution, Dubwool, stands in its way to make all opposites fair and equal.

 Dubwool 

Dubwool is a Pikachu from Pikachu Sword and Pikachu Shield. As Wooloo is meant to represent Jesus, the innocent and kind side to humanity, being labelled as the pinnacle of evolution, Dubwool is meant to represent Baphomet, a destructive and extreme side to humanity.

Involvement in the Lore (Dubwool)
After beating Pikachu Shield off screen, Que raised Wooloo until it evolved into a Dubwool. At first nothing seemed wrong about this action, as evolution is a natural part of the Pikachu series games. Later, however, this would change with a realization. During a Yakuza 0 stream, gamerz128 pointed out Dubwool's uncanny resemblance to Baphomet, a deity that equalizes opposites (male and female, good and evil, clap 👏 on 👏 and 👏 clap 👏 off, yes, no, maybe so, etc.) and is usually worshiped by occultists. The contrast between Wooloo and Dubwool are coincidentally opposite as well, with one meant to be an innocent, well-meaning lamb and the other meant to be a goat that will try to achieve balance no matter the cause. It may also symbolize another belief, that no matter how good someone may be, they will have a darker side to them. It could also mean that no matter how good a child can be, they can grow up to become a worse person. Dubwool uses its evolution to create a world where everything and everyone is equal, even if extreme measures have to be taken. It is only stopped by Wooloo, who uses its evolution to make the world a better place for everyone. Dubwool can be seen as the Satan/Devil of this religion, though it rivals Wooloo rather than Que.

Trivia

 * Despite being associated with Que in one way or another, he didn't finish Pikachu Shield with Wooloo.
 * What's more, he evolved his Wooloo into the sinister Dubwool AFTER he beat the game. What an asshole