Bladeweave

You touch a weapon, imbuing it with an unbelievable pattern.

You touch one weapon, if it is non-magical it becomes magical. The weapon deals an additional 1d4 psychic damage.

At Higher Levels: When you cast this spell using a spell slot of 4th or 5th level, the extra damage increases to 2d4. When you use a spell slot of 6th or 7th level, the extra damage increases to 3d4; when you use a spell slot of 8th or higher it becomes a 4d4 psychic damage.