Haven't found this posted yet, maybe it has and I haven't seen it.

Playing Modern Skyblock 3 and recently Evolved Endermen and Zombie Pigmen have been dropping ludicrous numbers of their respective hearts - and by ludicrous I mean I killed one Zombie Pigman and he dropped over two stacks of Zombie Hearts. It didn't start out this way to the best of my knowledge, but it is happening now. I'm pretty sure I shouldn't be getting 130 Zombie Hearts from one Zombie Pigman, unless of course the Zombie Pigman is made of Zombie Hearts, in which case please disregard.

I have a Mega Loot Dragon Helmet with Luck 984. I believe this to be the cause of my insane drop rates.