tide turning items

[Conq]

Alright, so another quick question, when i'm playing against the AI towards the late game i'll usually wish for a few doom horrors to knock the AI down a peg to manageable levels, and occasionally i'll get one stolen from me, so whats the best way to kill them? I've found that casting a bunch of "Angelic Hosts" is the easiest way to catch them before they get away. And one time I kitted out an Ether Lord with a Mage bane (i think thats the right sword, or whichever one destroys magic beings) and had him chase around my rogue horrors.