Sustain/lifesteal for ap champs
Why arent there are any life steal ap items ? like a bork or bloodthirster but for ap
5 Comments
It's called spellvamp. Usually gunblade has good sustain for ap assasins
Spellvamp exists.
and 
are why it isn't prevalent.
something like this u mean ?
exists
And also: Spell vamp applies to ALL ability damage, not just AP/magical damage.