BUG: CUSTOMSTATS damaged trigger doesn't work with skills

Summary

Damaged triggers in customstats doesn't work with mythicmobs skills

Steps to reproduce

Set up this customstats or one of the example customstats in wiki: https://pastebin.com/aptKEEWw

then add this stats to a mob: https://pastebin.com/qWEvXDW9

Current behavior When I hit the mob with a skill, the damage isn't reduced, but is reduced when I hit the mob with a basic attack

Intended correct behavior When I hit the mob with a skill, the damage should be reduced

This bug does not give errors in console