Morphs - iSach/UltraCosmetics GitHub Wiki

As said in the Quick Start Guide, if you want to enable the morphs, you need to install ProtocolLib and Lib's Disguises!

ProtocolLib:

https://www.spigotmc.org/resources/protocollib.1997/

Lib's Disguises for each supported MC version of UltraCosmetics:

• 1.12.x+: https://www.spigotmc.org/resources/81/
• 1.8.8: https://www.spigotmc.org/resources/81/download?version=69816