User blog comment:Degritone/Tonan, the Essence Thief/@comment-7709681-20141117025001/@comment-25364408-20141117032433

How would you word it then? It should be obvious; other abilities say "gain X lifesteal" or "gain X spell vamp." At level 1, no runes, masteries, or items, he has 10.5% spell vamp, or ((287+63)*0.03)% spell vamp. Pretty sure it's worded correctly.

As for the mana burn, it's kind of his entire focus. I don't know old Kassadin's W, so, if it's specifically geared toward his E or the entire mana damage thing, I'm not sure. If the latter, not changing it.