This is for the mod Pixelmon for Minecraft version 1.16.5. Crystal Onix is a full-fledged form now!
Hope you enjoy!

This requires both the data pack and the resource pack to be installed. You can find both of them under "Files".
DO NOT JUST DOWNLOAD THE RESOURCEPACK UNDER RECENT FILES ON THE RIGHT SIDE PANEL!
Scroll down and look below the main download option under files.

They currently use default spawns.

Crystal Onix and Crystal Steelix have been made into fully working forms.

The achievement for catching Crystal Onix still works!

Their Ability is Dry Skin and their Hidden Ability is Clear Body.

Their stats are different than their base forms.

Crystal Steelix can Mega Evolve. The Mega Crystal's ability is Analytic.

They are both rideable.

I have created entire movesets for both of them!

I have changed Mountain Gale by adding better animations.

I have added 2 custom moves! Each has its own custom animations:

Crystal Throw - Learned at level 10 by both - 70 Power and 90 Accuracy / Resets opponent's stat changes

"Crystals are hurled at the opponent. The crystal's purity cleanses their stats."

Glass Effigy - Learned at level 60 (Crystal Onix) and level 75 (Crystal Steelix) - Raises Attack and Special Attack 6 stages / Lowers Defense and Special Defense by 6 stages

"Become like glass. Maximize attacking. Minimize defending."

I also came up with Pokedex data for the forms. Unfortunately, they can't be added to the game but I'll still share:

Crystal Onix - "It looks as though it might be made of glass due to the purity of its crystals. A mythical Onix that inspires great works of art."

Crystal Steelix - "Evolution removed the final impurities from its crystals. Its body is comprised of a metallic crystalline structure that is powered by frozen fusion."

Mega Crystal Steelix - "The crystals in its body resonate when a foe engages it in battle to achieve extreme power."

Crystal Onix Reborn