It works WITHOUT OPTIFINE BUT will miss a couple of things...


Source of inspiration for the netherite:

www.planetminecraft.com/texture-pack/improved-netherite-by-toxteer/

Changes:

Elytras named Netherite Elytra, Netherite Shifted Elytra, and Death from Above will have unique textures.
Turtle helmets are now named "Poseidon's crown."
Tridents will look different when they have channeling and have an animation.
Swords with fire aspect have an animation.
Bows are changed. Crossbows are blow darts.

The crossbow that looks like a dino can be gotten by naming a crossbow "The Godzilla Launcher." Crossbows with multishot will have three heads/holes? The other crossbow is the default.
Shields are... Let's not talk about it...
All armor tiers excluding leather are changed.
All tool tiers are changed except for wooden swords and pickaxes.
Pickaxes with fortune will be more thicc?
Enchanted Books with Thorns will be Uno Reverse Cards.
Netherite armor will imitate the wither's armor when it is under half durability.

Updated item textures for netherite ingots and some armors.

Also: Changed the wither (Sorry tell me if I should remove it).