Prevent Monster Heal

This attribute (PMH) does what it says: it prevents the natural life regeneration of monsters from working. This isn't like poison or open wounds damage that forces the monster into negative life regeneration, it simply stops it for around 80 minutes. The monster can still drain life, but for 80 minutes, while PMH is in effect, it won't regain any life if left alone. This means that if you're going up against a particularly tough monster, you can swap in a PMH item, hit the monster once, then swap it back out and count on PMH being in effect for over an hour.

If you want to know how much life every monster regains a second, then go to Librarian's MonStat.txt Listings, but I'll just give a simplifed example so you have an inkling of how useful this mod is. Say an urdar in an eight-player game in Hell difficulty regenerates 300 life per second. Every second you hit it for 1,000 damage, you're actually hitting it for 700 because it regains life so fast. This is assuming you always hit it, which you won't, so it's regaining enough life that you will need more hits to take it down than you should. Pop on a PMH item, however, and now that urdar can't regain any more life, which means less hits per urdar, and a faster kill speed overall.

Where can I get prevent monster heal?

Equipment:

Blackhorn's Face death mask

Breath of the Dying (Vex + Hel + El + Eld + Zod + Eth) rune word weapon

Edge (Tir + Tal + Amn) rune word weapon

Hwanin's Blessing belt

Nature's Peace ring

Various rare weapons can have PMH, including bows

Sockets:

Mal rune, when socketed in weapon

By the way, PMH only works on player-to-monster. PMH items on your hirelings won't work on monsters, nor will PMH items work on other players. PMH items also won't work on Über Prime Evils.