Yarn Creature

You wave your hand and turn the spool of yarn into a Creature that fits in a 1 foot by 1 foot cube.The Creature has 4 hit points and 15 feet of any movement type(burrow,fly,swim,etc.).As a bonus action you can move the Creature or cast a spell using it.If it leaves the 60 foot sphere or drops to zero hit points it turns back into a spool of yarn.When the spell ends it also reverts back to the spool of yarn.