Skeletal minions are a Dungeoneering exclusive monster summoned by the Necrolord. One minion per party member is summoned at a time (so soloers get one minion and a full group gets five), and they remain until defeated or all players leave the room. It is advised to ignore the minions and focus on the Necrolord. If no players are left in the boss room then the minions will disappear in a short period of time, similar to how Nomad's clones work. Furthermore, they can also block the path of magic and ranged attacks, similar to Brawlers in Pest Control. Therefore, the best strategy when soloing is to stand right next to the wall, so the minions will spawn behind the player and not block their line of sight to the Necrolord.