Ладно раз не смог убедить тебя сам приведу пост с ElitistJerks:
This isn't accurate. There is no need to add a 2nd SB after the first SB and haunt. Unlike self buffs such as a trinket, DoTs will receive the benefit of any debuff added to a mob even if the debuff is added after the DoT was initially cast.
For example, go to a target dummy, and cast corruption. Let it tick twice, then cast a shadowbolt. As soon as the shadowbolt hits and the shadow embrace debuff is applied, all remaining corruption ticks will increase in damage from the shadow embrace debuff, so long as the debuff remains up. So, effectively, DoTs increase and decrease their damage "on the fly" dynamically with debuffs as they go on and off the target.
Я не знаю как твой англиский но тут сказано примерно следушее: Прок от стрелы тьмы являеться "вне спел бафом" тоесть модификатор на дамаг наноситься после тика доты тоесть если ты скастил дот под 2 стаками а потом наложи 3ий то не надо кастить доты по новой так как они сразу получат бафф от прока.