Arcane Armament

You infuse magical energy to alter the structural core of your weapons. Upon casting, you may target up to two one-handed weapons or one two-handed weapon. Choose a damage type to replace their current damage type of the weapon(s): Acid, Cold, Fire, Force, Lightning, Necrotic, Poison, Psychic, Radiant, or Thunder. You determine any physical changes your weapon undergoes, it can be changed however you like as long as it remains the same general shape of the original weapon, with minor magical effects (that do not alter game statistics), this can be moving patterns, glowing, etc.

If the base weapon damage die is 1d10 or lower it increases the base weapon damage die by one size, up to a maximum of 1d12 and it is changed to the chosen damage type for the duration (ex. If you chose Cold damage on a Dagger (1d4 Piercing damage + Bonus modifiers), the damage becomes: 1d6 Cold damage + Bonus modifiers). Weapons with more than one base weapon damage die, such as the Greatsword's 2d6, are unaffected by the base weapon damage die size increase.

If the weapon itself deals additional damage, the additional damage is unaffected by this spell (ex. If you chose Lightning damage on a Flame Tongue Longsword (1d8/1d10 Slashing damage + 2d6 Fire damage + Bonus modifiers), the damage becomes: 1d10/1d12 Lightning damage + 2d6 Fire damage + Bonus modifiers).

Additionally, weapons altered by this spell can act as a spellcasting focus.

If you cast this spell again on a weapon already affected by this spell you may ignore the material components as the jewel used for the spell is fused to and permanently attached to the weapon.

At Higher Levels. When you cast this spell using a spell slot of 3rd or 4th level, the duration for the spell increases to 24 hours. When you use a spell slot of 5th level or higher, the duration for the spell lasts until it is dispelled by an effect such as Dispel Magic or until the spell is cast again choosing an alternate damage type.