[Edi]

Ah, that. There are two sites where you can enter for adventure and get strange (and usually fatal) effects. The City of the Damned and The Forgotten City allow this. When a commander enters, anywhere between 0 and 8 effects happen to him. Most of those things are getting hit by falling axes, crossbow bolts, arrows, ballista bolts, falling rocks or other assorted Indiana Jones type traps, or he may be attacked by horrors, certain Void beings, shadows, shades, ghosts or skeletal warriors. Very quick way to gain experience if the commander survives, but the afflictions start piling up really fast.

Potential rewards (you get a reward maybe 20% of the time) are gold, magic gems and magic items. Perhaps something else as well, but I haven't tested it that much. I suppose I should put a site testing game up just for that and put some big, durable commander into both sites.