Kobold shamans are relatively common monsters in ADOM. They are not proficient in melee combat, but have a ranged magical attack. Abusing the low potency of shamans' magical attacks is a great way to train Alertness. The player simply needs to move around the monster keeping a short distance (spell range seems to be rather low) and endure multiple bolts. Some of them will be successfully evaded, effectively increasing skill maximum advancement level and/or possibly causing a passive skill advancement later.