Many players think that Hexdrinker is a waste of gold. I would like to know what these players think about the Maw of Malmortius, Hexdrinker's upgrade:

Maw of Malmortius - Item Cost 3300 - Recipe Cost 925 - Requires: Hexdrinker + Pickaxe - +55 Attack Damage +36 Magic Resist UNIQUE Passive: If you would take magic damagethat would leave you at less than 30% Health, you first gain a shield that absorbs 400 magic damage for 5 seconds (60 second cooldown). UNIQUE Passive: +1 Attack Damage for every 2.5% of your Maximum Health that is missing.

P.S. This item will be perfect for Olaf and Tryndamere