Arcanist's Sword

You create a glowing sword-shaped plane of force that hovers within range for the duration. When the sword appears and as a bonus action on subsequent turns, you can give the sword one of the following commands.

• Attack. The sword moves up to 20 feet toward a creature and makes a melee spell attack against it. On a hit, the target takes force damage equal to 3d10 + your spellcasting ability modifier.

• Guard. The sword moves up to 20 feet into a creature’s space and grants the creature half cover as it attempts to deflect incoming attacks. The first time a hostile creature comes within 5 feet of the sword, the sword makes a melee spell attack against that creature. On a hit, the target takes force damage equal to 3d10 + your spellcasting ability modifier. The sword cannot attack again until you command it again.

• Whirl. The sword moves up to 20 feet toward a point and then begins to spin in a deadly whirl. A creature that starts in the sword’s space or passes within 5 feet of the sword on its turn must succeed on a Dexterity saving throw or take 3d10 force damage.