Board Thread:General discussion/@comment-5025602-20121127153944/@comment-3974211-20121205170510

I've always hated that particular part of the template for no reason other than : "Empower triggers spell vamp and Rylai's similarly to single target abilities". It's not necessarily incorrect, but it's misleading. It should say something along the lines of this: "Empower is an on-hit effect, but it behaves like a single target ability. As such, it triggers spell vamp and Rylai's similar to single target ability damage for full effect." Empower is an exception among on-hit effects.

Rylai's
 * 30% - Single target, non-periodic ability damage. (the only exception is Cassiopeia's Twin Fang)
 * 15% - Multi target and/or periodic ability damage.

Blackfire Torch
 * 3.5% of their maximum health over 2 seconds - All ability damage.

Liandry's Torment
 * 5% of their current health over 3 seconds - Single target, non-period, magical, ability damage. (double if movement is impaired)
 * 2.5% of their current health over 3 seconds - Multi-target and/or periodic, magical, ability damage. (double if movement is impaired)

Ability damage being distinct from on-hit damage; magical being distinct from physical or true.