This plugin lets you control all drops on your server. Even more: You can set custom drops for different conditions. Want a special ore only drop at night in ocean biomes with a 1% chance? Or want specific drops only for premium players? Possible with this plugin.

Plugin Link:

https://www.spigotmc.org/resources/advanced-drop-manager.65396/

Donate:

https://bit.ly/2TqJNYD