Found a Strange Temple for the first time, happened to’ve found the key early on in the run so in I went.
It wasn’t terribly difficult until the fire corridor, but I then realised I could just jackhammer a path around the flames.
Found two artefacts at the end, the first a Heavy Staff of Shadowy Technique, which increases strength by 4 when held, makes me rattle when wielded and functions as a pretty good weapon, with 30 bashing. It also functions as a quick-charging reusable flashbang that causes me to feel sharp pain (and causes the fabric of space to decay, but that’s totally worth it).
The second is the Boots of the Repellent Monolith, wearing these causes me to feel unwell and reduces stats (str -2 dex -2 int -2 per -5) but allows me to see through walls.