This Sword is For Sale:
The Sith Apprentice would train with bladed weaponry for years before being permitted to forge their lightsaber.
However, upon the Apprentice's vanquishment of their first Jedi, using simple melee weaponry, they were encouraged to extract the Kyber Crystal from the fallen Jedi's Lightsaber. Corrupted under the will of the Sith Apprentice, the Crystal would bleed in it's servitude to such insidious purposes.
The now reddened Crystal was then fused into the hilt of the Apprentice's weapon of choice, making the tool, and the student, unimaginably more powerful - that much closer to the emptiness and purity of will that is the Sith.