Azurelle's spear has a point to it; there's no spear-head, it's all part of the same piece of material. So it's smooth-sided and round, rather than serrated, arrowhead-shaped, hooked, and so on. Pulling away will remove the spear from the wound without causing more damage.

The spear is being yanked to Azurelle's right and Despair's left.

Azurelle is wielding the spear with both hands, so it's all her upper body strength. Aasimar are no stronger than humans, so Azurelle's no stronger than somebody who has trains her upper body about once a week.