AbyssalCraft provides acces to alot of powerful items, this can lead to balancing problems in modpacks or minecraft in general.
It would be very cool if you could expose some of the item values to the abyssalcraft config.
E.g beeing able to manually tweak the damage values for your weapons or buffs for your armors would be great!
Especially Sacthoth's Soul Reaper Blade seems to be a little overpowered with 25 damage.

You could just extend the public range of your Mod by providing some more config options for balancing :)

List of Suggestrions:

• Configurable damage values for weapons
• Configurable effect lists for armors
• Configurable drop chances for high tier items (0 = no drop at all)

Your config file is already pretty nice, i like that you added hardcore mode options and alot of the other stuff but some further balancing entries would be really awesome! One great mod example is evilcraft where you can nearly tweak everything.

Keep up the great work!