Wanderers (Nether Zombie Variant Immune to Soulsand)

Wanderers would be a zombie variant that commonly spawns in the Soul Sand Valley. They would look different, but act the same as regular zombies. Like how Husks are immune to sunlight, Wanderers are immune to the slowing effects of soul sand. Because they would be a common mob in the biome, they can be dangerous because they would be moving faster than you and there would be a lot of them chasing you. I think they'd could be cool and make the Soul Sand Valley just even more dangerous.