Spell Vamp Items
I think that there need to be more spell vamp Items added to the shop. As of right now there are "4" items you can get to increase spell vamp, I only count 2 of those items because the first item
builds into 2 of the other items and
only works if you are below 50% health. Currently the most spell vamp a champion can get just by items and masteries is 55.44% spell vamp. Keep in mind that spell vamp is cut in third by aoe abilities. Also to get the most spell vamp there has to be at least 17 points in the defensive tree and most mages don't do that. Another thing to keep in mind is that in order to get the most spell vamp not only do you have to put 17 points into the defensive tree, but the champion also has to be below 25% health. Where if you look at the life steal side of things it is really easy to get over 50%. For both of these examples I did include
and the bonus 20% healing effects.