This one’s experiences are as follows:

  1. Lightning Storm, Fairly reliable to damage the enemy a few times and stun them. Will damage your own structures, but not too much, usually.

  2. Call of Dread, Worthless. If the zombies ever do spawn, they are not quick to aggro on the enemy and are basically one shotted. Plus you now have the fog to deal with.

  3. Creeping Darkness, even worse than Call of Dread. Not only does it have absolutely no impact on purge enemies, but it also chokes the area in darkness making targeting with ranged deterrents basically impossible.

  4. Mirror Mark, Worthless. Enemies seem to ignore the illusion.

  5. Wall of Fire, Situational. If you need a very short term patch for a breeched wall, this is one overwrought way to plug it. Generally not worth it, but it can block paths. Just be careful not to cancel your purge.

Honourable mentions.
Detect corruption does not reveal the invisible thieves.
Golems are surprisingly good. They are tough, don’t flinch, and can be built to spew poison all over the place. While not optimal, this is a situation where they can be useful. Just don’t mistake the enemy golems for your golems.

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