Alter ego

As you chant the spell, a clone appear behind the caster. It will obey the caster and share a mindset. If the caster takes a long rest, the alter ego will disappear. They also disappear when killed (opponent(s) roll Intelligence of 15 and up to hit the real one).After 2 hours, it turns evil but does no harm you or the party. Once the spell is over, the alter ego will disappear but the mischief caused by it goes to.