Thanks for the review! You can in fact create a custom drops. The idea is to use pure vanilla mobs, and custom mobs via MythicMobs. Soon i will make a wiki page to show how this is done but it is simple, instead of the vanilla mob u just write the mythicmob id (name from the mob .yml file). Then you can create custom drops there.

Again, thanks for the review, and make sure you use discord for recommendations next time. Have fun!