Infested Necroray

Farm the Oozing Necroray Egg by completing Maldraxxus callings — players have reported obtaining eggs from Maldraxxus calling reward boxes, including those from Kyrian callings that reward Maldraxxus content.

Once you have the Necroray Egg, it takes 3 days to hatch into an Oozing Necroray Egg, which then has a 100% chance to grant one of three mounts: Bulbous Necroray, Infested Necroray, or Pestilent Necroray — similar to the Primal Egg system.

You can only hold one Oozing Necroray Egg at a time in your inventory, but a second egg received while one is already in your bags will hatch via the in-game mail system instead — running multiple alts increases your total number of calling completions.

Once you have obtained all three Necroray mounts, any additional eggs that hatch will instead produce a Gilded Slime rather than a mount.