Scimitar of Sand

A curved, 3-foot-long blade of sand springs forth from your hand, screaming and churning like a caged sandstorm. Attacks with a scimitar of sand are melee touch attacks. The blade deals 1d6 points of damage, +1 point per two caster levels (maximum +10). The blade is not solid, so your Strength modifier does not apply to the damage.   You can use a scimitar of sand without penalty even if you lack proficiency with a normal scimitar. In addition to being dealt damage, a creature struck by your weapon must succeed on a Fortitude save or become dehydrated.   Arcane Material Component: A pinch of sand, salt, and iron filings.
 

You create a curved, 3-foot-long blade of sand in your hand, screaming and churning like a caged sandstorm. This magic sword lasts until the spell ends. It counts as a scimitar, and you gain proficiency with it while this spell is active. It deals 1d6 Slashing damage, but you use your spellcasting modifier rather than your Strength or Dexterity modifier for the attack and damage rolls.   The first time you hit a creature with this weapon each round, that creature must make a Constitution saving throw against being dehydrated. On a failure, it gains a level of Exhaustion. A creature cannot have more than 2 levels of exhaustion from this spell.