Damage Over Time Reaping
Reaping can settle an equivalent to a certain duration of Damage Over Time acting on a unit.
When Reaping, the active Damage Over Time on the target will be settled at once according to the given time and then deal an equal amount of True Damage.
Reaping only applies to Damage Over Time you deal. The Damage Over Time dealt by other units can't be settled by your Reaping.
Reaping generally has a Recovery Time, which is affected by the Reaping Recovery Speed.
The Damage Over Time duration settled by Reaping is affected by affix bonuses such as: "+X% Reaping Duration".