|Champion Point Investment Effects|
Befoul is a star within the Constellation The Shadow in Elder Scrolls Online (ESO).
This was added in Update 6 with the Champion System. It increases effectiveness of healing reduction abilities by [x]%. You can put 100 Champion Points into this passive ability for a maximum of 55%.
With each point invested, the increase in effectiveness of healing reduction abilities diminishes. That is to say, for the first 10 CP invested, you would gain a 10.5% increase in Effectiveness. However, the next 10 CP spent (making a total of 20 CP spent), will earn you only 9.36% more Effectiveness. This is 1.14% less than the increase gained in the first 10 CP.
As such, spending just 40 CP into Befoul will already gain you a 35.23% increase in the Effectiveness of healing reduction abilities. This means you will have gained 60% of the Maximum increase possible (which is 55.0%) by spending just 40 out of the total of 100 CP. Therefore, beyond this point, the increase in Effectiveness received per 1 CP used is very small and not as worthwhile.
Where i can find abilites for which Befoul ?