This is an addon for Mine and Slash.

Installing it will activate ability to choose different compatibility modes for Mine and Slash:

1) Original Mode - default Mine and slash

2) Compatible mode - same as default, but other mod's spells are scaled/converted with Mine and slash damage

3) Lite Mode - drastically change the mod into a 'lite' version, making it better for modpacks that aren't focused on Mine and slash:

Instead of replacing or nullifying the damage of other mods, Mine and Slash will instead only add bonus damage, making it work with other mods
Level scaling will be drastically lowered to not overshadow other mods
Certain Gui elements will be hidden
Values of mob damage, player stats etc will be lowered to mesh better with more vanilla modpacks
Certain Mine and Slash features like stat or weapon requirements will be lowered or disabled
Other tweaks which you can read about fully here: https://moddedmc.wiki/en/project/mine-and-slash/docs/modpack_dev/compatibility_addon

Also, all these options are configurable, these are just the default options.

As an extra feature, it comes with damage source debugging commands:

/mns_compat damage_watch

These can be used to see what type of damage other mod's weapons do, to make it easier to create mine and slash datapacks for these weapons.

Mine and Slash Compatibility