Я немного подкину в ваш котел инфы
http://web.archive.org/web/201112212...ge_compendium/
Combustion sums up the individual DPS of all your existing DOTs on a target, creates a new debuff with that value, and has the new debuff tick every second for a 10 second total duration. Remember that the wording in DOT tooltips, or what a DOT ticks for, is not necessarily its DPS value. If a given DOT does "1500 damage every 3 seconds" or "5000 damage over 10 seconds" - they still both tick for value: 500 DPS. This DPS value is what Combustion combines when consolidating DOTs, and to calculate the new consolidated DOT's value.
Что говорит о создании доты на основании ДПСа других дот. Почему урон с этой доты не должен снижаться так и не понятно.