The Withered Symbiont is a mini-boss summoned by a phase 5 wither storm. It can only be damaged by the scar on its back as it will jump on the player if hit on the scar. When it dies, it drops an Enchanted Command Block Book, which is used for Command Block tools.

[The texture for this one is the Programmer art] [Its simplified so you don't get confused]

Link for the Mod:https://www.curseforge.com/minecraft/mc-mods/crackers-wither-storm-mod

It's kinda small, but you can resize it in your printing menu The long, black-ish stuff needs to be printed 2 more times [I couldn't find my glue :( ]