A Priest in good standing with their god and standing on or near a coaligned altar sometimes has the ability to use a special spell or prayer to call a coaligned Angel to fight with them as a pet.

Sometimes, when fighting, a monster not directly adjacent to you that wants to attack you but can’t because there is a monster directly adjacent to you can move through the combat and end up on your opposite side, as a way to make chokepointing less of a dominant tactic.