Zamacona is another enemy weakness, and like most, he is a much bigger problem in solo than multiplayer. There's a lot of supercheap technology that deals with him: handcuffs and spectral razor come to mind. Or stir the pot targeting another enemy. With mind wipe, a friendly mystic can make him extremely vulnerable to the countess’s trickery.
Elusive and "Spawn - Nearest empty location" can be a great aid (in case you want him to fall off a train) but if you’re only dealing one damage per attack, he’s going to stick around forever. The pitchfork, a beat cop(2), or drain essence (from someone else in the party) can deal with the Z-lister without having to chase him down even more.