Using a sword over a spear can offer certain advantages depending on the context and combat scenario. Here are some reasons why one might choose a sword:

1. Versatility: Swords are versatile weapons capable of both cutting and thrusting actions. They excel in close-quarters combat, allowing for quick and agile movements. Swords can be used for offense and defense, making them suitable for various combat situations.
2. Mobility: Swords are generally lighter and more maneuverable than spears. They allow for swift strikes, parries, and changes in direction, making them effective in situations where agility and speed are crucial.
3. Single Combat: Swords are well-suited for one-on-one duels or engagements where individual skill and finesse play a significant role. Their maneuverability and versatility allow for precise strikes and quick reactions to an opponent's movements.
4. Indoor or Confined Spaces: In tight or enclosed environments, such as within buildings or forests, the shorter length of a sword can be an advantage over a longer spear. Swords allow for better maneuverability in such spaces, where a spear's longer reach might be hindered.
5. Weapon Adaptation: Swords can be used in conjunction with a shield, providing an additional layer of defense. The ability to parry or block with a sword while using a shield can enhance protection against an opponent's attacks.
6. Symbolism and Prestige: Swords have cultural and symbolic significance in many societies. They are often associated with honor, chivalry, and martial prowess. Wielding a sword can convey a sense of status, leadership, or skill in combat.

It's important to note that the choice between a sword and a spear depends on various factors, including personal preference, combat style, training, and the specific circumstances of the battle or conflict. Different weapons have their advantages and disadvantages, and the selection often depends on the situation, the skill of the wielder, and the tactics employed.