The Stubborn Bulls (Empire Knights - Greatswords)

Stubborn Bulls (Empire Knights-Greatswords) are an Empire Elector Count State Troops cavalry unit from Ostland. Fortunately, Ostland's dank forest-clothed terrain produces elite warriors able to withstand the continual Ruinous incursions threatening the province.

Description
This description stems from the Ostland Black Guards in lore, who seem to have inspired this unit:

The Ostland Black Guard are a very well-known regiment. They have campaigned for many different electors, and their reputation has spread beyond their native state.

As it is extremely difficult to use a greatsword properly, the Ostland Black Guard must spend many hours training. In fact, they train every day on which they are not on campaign, sparring to improve their skills.

In battle, the Black Guard stand somewhat farther away from each other than other units do. This is because of the fighting style associated with the greatsword. It is wielded in great arcing movements. Thus it is important that the members of the Ostland Black Guard do not get in the way of their comrades. It is said that this style of fighting harks back to warfare during the time of Sigmar, when more emphasis was put on individual heroics than unit fighting. In some cases, it can appear that, because of their formation, the Black Guard are a weaker spot in their army's lines. However, any enemy who attempts to attack them will be bloodily repulsed.

The Black Guard are also noted to be stubborn, grim, and devoted to Morr. In fact, before every battle, the unit is blessed by a priest of Morr.[1b]

The Ostland Black guard wield zweihander swords as tall as a man. They are decorated with the Bull's Head, the emblem of Ostland. They are also inscribed with holy texts meant to bolster a warrior's faith during battle.

The Ostland Black Guard wear black lacquered plate mail and black leather hauberks. Each fighter also carries a pouch with two silver coins, believing the offering will guarantee them safe passage into the Realm of Morr should they die during the course of the battle.

Attributes

 * Immune to Psychology: The unit is immune to psychological attacks (fear and terror).
 * ↑ Armour-Piercing: The damage of armour-piercing weapons mostly ignores the armour of the target, making them the ideal choice against heavily-armoured enemies. They are often heavier and attack at a slower rate though, making them less efficient against poorly-armoured targets.

Strategy
One may think this unit is just another Empire Knight with a magic aura like the Knighs of Morr and the Knights of the Everlasting Light, however they would be mistaken. This unit gains an immunity to psychology and swaps the lances of empire knights for Greatswords. This essentially makes them mounted greatsword units more akin to Questing Knights than Empire Knights.