A mod that lets you define rules on when a mob should get a special NameTag and/or Texture based on their NBT data.
All the different rules can be enabled separately through an extra menu.
(default: L-Alt, can be changed in keybindings)
Check out the Wiki!
This mod is clientside. It will work on servers, however it might be considered cheating.
Be sure to ask permission before using it on a server!
You can add this mod to modpacks if you want.