Alabaster's Arcane Armory

You focus on a weapon with the intent to change its atomic makeup: Weaving the arcane around it to change how it harms its enemies.

For 24 hours after casting this spell, you can change any properties of a weapon: Be that damage type, one-handed or two-handed, or even its ability to cause (or not cause) lethal harm. If the weapon does not take a life before the enchantment ends, however, it becomes an Animated Weapon (+5, Multi-Attack, AC 10, HP = to the weapon's damage die maximized), and will attempt to kill the wielder, and then the wizard that cast the spell.