Aeronautics

A set of powerful wings capable of flight emerge from your back.  These wings  look however the caster wishes, they choose colour, type, and location on the back.  The wings although magical are still corporeal, and have a wing span of 3x the creatures height, the creature is considered one size larger when determining weight, and size. If the spellcaster is wearing magical armour, the armour accommodates for the new set of wings, if the caster is not wearing magical armour, and is instead wearing normal armour the spell fails as their isn’t room for the wings to form.  While the spell is in effect you gain a flight speed equal to twice your movement speed. In addition  You may carry 2 small creatures, 1 medium creature, or up to half your carry weight in items such as bags or weapons.