This mod adds 2 new mobs for each nether biome.

Basaltadon: A quick mob that deals poison to the player, it drops Basaltadon Scale and spawns in the Basalt Deltas.

Crimson Cow: A crimson variant of the Cow, it can be killed for Infected Horns or you can milk it for a Lava Bucket. It spawns in the Crimson Forest.

Eyelet: These mobs spawn in the Nether Wastes and give blindness to the player if it is in a 10 block radius from it, it drops an Eye.

Molter: This mob spreads lava as it walks and shoots Blaze fireballs at the player. It doesn't drop anything and it spawns in the Basalt Deltas.

Nether Wastes Necromancer: This mob can summon Eyelets and Blazes, it drops Nether Essence and it spawns in the Nether Wastes.

Phoenix: This mob moves like a Ghast and shoots a bunch of Blaze fireballs at the player. It drops Chicken and Feathers and spawns in the Crimson Forest.

Soulsand Valley Necromancer: This mob can summon Skeletons and Souls, it drops Nether Essence and it spawns in the Soulsand Valley.

Soulwalker: This mob is quick and will give slowness to the player if it hits the player. It drops Soul and spawns in the Soulsand Valley.

Stalker: This mob is quick and will give nausea to the player if it hits the player. It drops Rotten Bone and spawns in the Warped Forest.

The Warped: This mob is passive and will occasionally drop ender pearls. They can be killed to rarely get a Twisted Heart, they spawn in the Warped Forest.

Netherborn: This mob doesn't spawn naturally and must be spawned with an Ancient Construct. It can be tamed with Soul while it can't see you. It has 170 hp and deals 10 damage.

ITEMS

Twisted Heart: Can be used to craft Infectious Heart when used with 8 Infected Horns.

Soul: Can be used to craft Soul of Nether when used with 8 Nether Essence in a crafting table or it can be used with another Soul and 2 Rotten Bones to craft a Phantom Membrane.

Rotten Bone: Can be used to craft Basalt Bone when used with 8 Basaltadon Scales or it can be used on its own to craft 1 Bonemeal or you can use it with another Rotten Bone and a Soul to craft a Phantom Membrane.

Nether Essence: Can be used with another 7 Nether Essence and an Eye to craft an Eye of Nether or it can be used with another 7 Nether Essence and a Soul to craft a Soul of Nether.

Infected Horn: Can be used with another 7 Infected Horns and a Twisted Heart to craft an Infectious Heart.

Eye: Can be used with 8 Nether Essence to craft an Eye of Nether or it can be used with an Ender Pearl to craft an Eye of Ender.

Basaltadon Scale: Can be used with another 7 Basaltadon Scales and a Rotten Bone to craft a Basalt Bone or it can be used with another 8 Basaltadon Scales to craft 1 Basalt.

Ancient Construct: Can be crafted with 2 Eye of Nether, 3 Basalt Bones, 1 Infectious Heart, 1 Soul of Nether, 1 Wither Skeleton Skull and 1 Netherite Ingot. It is used to summon the Netherborn.

Racing Inferno