Suggestions

Thrifty

Remove the Thrifty changes, or rework it so Thrifty is a set, single enchantment with no tiers that gives 1% instead of the 3%.
The natural spawn rates across each server is abysmal. There is no efficient way to farm souls. When each of your Spawners to max is costing between 5000-7500 souls, you can't seriously expect people to kill 5000 mobs?