Carian Greatsword

Conjure a Magical Greatsword that you concentrate on wielding. With the weapon you can make either sweeping strikes or piercing thrusts as actions. When used, immediately use a sweeping or piercing strike. Strikes do 2d10 + spellcasting modifier force damage to any targets that fail their saving throws, and half that amount on a success.

Sweeping Strike: Each Creaure in a 10 ft cone must make a dexterity saving throw.

Piercing Thrust: Each Creature in a 15 ft line must make a dexterity saving throw.