#2 Change how drops are randomly chosen

Item1:
bone
90%
1-4
Item2:
skull
10%
1

Afaik, vanilla has a drop table that represents an array of item configuration. Each item configuration has its item data, the probability of dropping this item and a random range. So for instance: ```yml Item1: bone 90% 1-4 Item2: skull 10% 1 ``` This config would drop one up to four bones for a chance of 90% and one additional item for a chance of 10%.