The Silverfish of the Nether
Ruby Leeches are new mobs found in the Nether. They are small worm-like creatures with a dark red color to them.
Ruby Leeches can be found in groups of Infested Netherrack at y-levels 8–22, similar to Netherrite, just to keep players on their toes while digging for it. The Infested Netherrack blocks generate about as commonly as Nether Quartz ore, and are found in just as big of groups.
Ruby Leeches also will naturally spawn in Lava Oceans in the Nether, and will be found swimming there. Ruby Leeches are fireproof, and when found in Lava Oceans, they spawn in groups of 3-4.
Ruby Leeches can move onto land from the Lava Ocean to attack the player, having 3 attack strength (1.5 ❤️). Ruby Leeches each have 12 HP (❤️❤️❤️❤️❤️❤️) and will drop 10 experience, twice as much as Silverfish
Throwing Nether Warts at Ruby Leeches will cause them to all move towards it, similarly to how Hoglins are distracted by Crimson Fungi. Ruby Leeches will drop 0-1 Nether Warts.