Dual Spell: Screeching Song

Requirements: An artificer who knows magical tinkering and knows level 3 spells and a bard who uses any sort of loud instrument (debatable) and knows level 3 spells.

Spell Description: The artificer makes an item with magical tinkering. Then the bard records a very loud song into said item. The item is thrown into the air and stays there, floating for 3 rounds. The item has 150 hit points. Each round it blasts the bard's song 3 chosen enemies, dealing 2d12 thunder damage. The item can only be hit by ranged attacks.

At Higher Levels: (For this to work both participants need to be this required level.) At level 10, the item has 180 hit points and is able to blast the song at 5 chosen enemies.

How Dual Spells work:

Both participants need to agree on the action, and it will take up both participants' turns. After using a dual spell, both participants will be stunned for 1 round. Either participant can cast the spell.