魔提斯深淵

Unique - Lifeline:

If you would take magic damage that would reduce you below 30% of your maximum health, you first gain a shield that absorbs ( 200 / 150) (+ ( 150% / 112.5%) bonus AD) magic damage for 3 seconds. Additionally, triggering this effect grants you 10% omnivamp until the end of combat (90 second cooldown).