Mordenkainen's Sword

7th-level evocation

Casting Time: 1 action
Range: 60 feet
Components: V, S, M (a miniature platinum sword with a grip and pommel of copper and zinc, worth 250 gp)
Duration: Concentration, up to 1 minute

You create a sword-shaped plane of force that hovers within range. It lasts for the duration.

When the sword appears, you make a melee spell attack against a target of your choice within 5 feet of the sword. On a hit. the target takes 3d10 force damage. Until the spell ends, you can use a bonus action on each of your turns to move the sword up to 20 feet to a spot you can see and repeat this attack against the same target or a different one.

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