And that +15 isnt somethig that bothers me, since in that combat log its not mentioned ...
It is mentionned... +1 from weapon enchantment + 4 from modifier +10 from the additionnal dice (1D10 = 10 for tooltips) = +15.
Tooltips for conditionnal effects always consider the conditions are met AND the highest number is always added wheb there is additionnal dices => tooltips are often confusing more than helping.