Final answer:
Aven is interested in learning how to use a sword or a gun, which are weapons typical of historical warfare and personal defense. Since the specific weapon isn't mentioned, we infer from the texts discussing swords and guns in various contexts of use and significance.
Step-by-step explanation:
Based on the information provided, Aven is a fictional character likely from a historical or fantasy context who wants to learn how to use a weapon typical of past warfare or personal defense.
Since there is no explicit mention of the specific weapon Aven wants to learn, one could infer that it might be a sword, considering that the second and fifth excerpts discuss this type of weapon extensively.
The sword is a classic close-range weapon made for cutting or thrusting, consisting of a pointed blade, hilt, and cross-guard. The text also describes characters emotionally bonding with their swords and practicing extensively, similar to how Aven might wish to train. Alternatively, based on the first excerpt, the choice of weapon could be a gun, as they were historically significant and represented technological advancements in weaponry.