Talk:Liandry's Torment/@comment-6015154-20130126134102/@comment-108.212.93.20-20130126210447

It does proc spell vamp but its very ineffective (roughly 1/6 the effectivness) since Spell vamp is reduced on DoT (damage over time) and AoE (Area of effect).

Spell vamp applies to any and all sources of damage that Lifesteal doesn't. specifically only the physical damage from basic attacks don't proc spell vamp, even if the basic attack is augmented by an abilitiy in the champion's kit. there are some exceptions to this, like Poppy's Q procs spellvamp instead of lifesteal. The aoe from Tiamat and hydra are another exceptionthat doesn proc lifesteal.

but pretty everything else works with spellvamp. damage from on-hit items, the damage reflection from thornmail, Deathfire Grasp's active, physical damage from like Caitlyn Ult, True damage from Ignite, Smite, Nunu's consume, Cho'gath's Feast.... and pretty much every damaging skill that doesn't augment a champions basic attack will.

Kayle's E is special in that it activates lifesteal from the physical damage on the primary target and spellvamp from the splash damage and magic damage on the primary target.

theres very, very few sources in the game that doesn't proc either lifesteal nor spell vamp