There are many noted species of wyverns. They are recorded in Dragons, Wyrms, and Wyverns: Their Unnatural History, an in-universe textbook compiled by Septon Barth. Brindled wyverns would likely ...

Due to an abundance of dragons and wyverns in Elden Ring ... and it deals 30% more damage against Dragons and Wyrms, including Magma Wyrm. It also deals 20% more damage against Ancient Dragons.