Morning Stars are spiked maces which penetrate the armor due to the spikes, which give it a small area on which the force is applied to deal damage to the enemy. This weapon is in Icewind Dale and Icewind Dale II in the maces proficiency, unlike Baldur's Gate, where this weapon is in the flails / flails & morning star proficiency. It requires 11 Strength to wield this type of weapon with one-hand. This specific weapon deals 2d4 points of damage, weighs 12 lbs and it has a speed factor 7.
The morning star is a wooden shaft topped with a metal head made up of a spiked iron sheath. Morning stars have an overall length of about four feet. Some such weapons have a round, oval, or cylindrical shaped head studded with spikes. Extending from most morning star heads, regardless of design, is a long point for thrusting.