In the Offense skill tree there is a mastery that gives you +magic damage on hit from 5% of your total AP.
If a champion you are attacking has maw of malmortius or hex drinker will the lifeline passive get proced from the attack?
There are also items that give +magic damage on hit like Lich Bane or Nasthor's Tooth. Do the items also proc the passive, lifeline?
And finally if only one of these proc lifeline will the shield block the magic damage of the other while the shield is up?