Your ray spells can affect an additional target.

Any metamagic feat

You can cause any ray spell tofireone additional ray beyond the number normally allowed. The additional ray requires a separate ranged touch attack roll to hit and deals damage as normal. It can be fi red at the same target as the fi rst ray or at a different target, but all rays must be aimed at targets within 30 feet of each other and fi red simultaneously. A split ray spell uses a spell slot two levels higher than the spell's actual level.