With this Pack your effects looks like it's summoning something from the underworld in your /particles menu.(disclaimer does not come with effects!)
Example in the links below:
https://proxy.spigotmc.org/2c0351bb5c301ee63628fef805b9ae7ad909b76a?url=https%3A%2F%2Fi.gyazo.com%2F69c8d76912ba451ab38d1af60e913120.gif
