anyway looks like the boost of arcanist is around x15 dmg (too op atm)
it is pretty hard to track the dmg distribution of crushing blow, but an affix that give 1.346x dmg boost means if an enemy has 1.346 trillion hp, then that affix alone contributed 346 billion dmg.
however, crushing blow is probably there so you can easily kill the white-blue monsters. Does arcanist still count dead enemies towards dmg increase?
@roykiyoy yes, chance doesnt increase the deadly strike dmg, however it affects the dps boost.
a simple example will be a 10% crit chance, +100%crit dmg vs 20% crit chance, +100%crit dmg
dps boost: if normally your attacks deal 100 dmg per second, 10% of the time it will be 200.
new dmg = old dmg + (chance)(bonus dmg)
new dmg = 100 + 0.10(100) = 110
the formula for determining the boost would be: new dmg/old dmg - 1
boost = 110/100 - 1 = 0.1 = 10%boost
for the 2nd one
new dmg = 100 + 0.20(100) = 120
boost = 120/100 - 1 = 0.2 = 20% boost
as you can see, the boosts are different even if only the chance was modified.