Major + Minor defile (Fasalla, Thurvokhun, poisons...). You get 30% (Major) + 15% (Minor) base healing reduction. 71 points in Befoul give you 50% bonus to this, calculated as (30 + 15) * 1.5 = 67.5% healing reduction. 69.75% would be with 100 points in befoul, altho it's not a very optimized CP distribution considering how many points you then need to invest for a very small difference.
That said, 67.5% is basically all your healing divided by 3. Good luck surviving any sort of pressure with that.
Major + Minor defile (Fasalla, Thurvokhun, poisons...). You get 30% (Major) + 15% (Minor) base healing reduction. 71 points in Befoul give you 50% bonus to this, calculated as (30 + 15) * 1.5 = 67.5% healing reduction. 69.75% would be with 100 points in befoul, altho it's not a very optimized CP distribution considering how many points you then need to invest for a very small difference.
That said, 67.5% is basically all your healing divided by 3. Good luck surviving any sort of pressure with that.
having befoul at 71 points gives you 50% on the cp tree, but only takes the tooltip to 45% not 50% nor 67.5%, unless its more like hidden