Talk:Ability effects/@comment-3093938-20140725115327/@comment-7709681-20141030160135

Morellonomicon applies to any source of magic damage, including on-hit, similar how Black Cleaver behaves; and Liandry's Torment is strictly on-spell, however, the champion's on-hit effect listed on "Exceptions" can trigger the passive DoT, since these are spells that behave like on-hit effects.

And Essence Reaver is on the list :P