Ahrim the blighted is one of the barrows brothers and currently the oldest of the 6 brothers and the only magic based one in the old school version of runescape. Ahrim posseses strong spells capable of high damage that can kill an unready player in a matter of seconds. Ahrim's crypt is in the middle surrounded by the other 5 barrows mounds in the area.
ahrim is dangerous to melee fighters so 43 prayer is HIGHLY RECOMMENDED in cast of death since gravestones are not in the game. A strong player can find ahrim quite easy and can kill him quickly but do not under estimate his powerful spells.
players should often wear strong magic resistant armor for protection of ahim in case your prayer is down and or you have not gotten this prayer yet.