You conjour a celestial being (aasimar) to help you on your journey. It has 20 hit points and a glowing longsword. It longsword shines bright light for 20ft and dim light for an additional 20ft. As an action, it can make a longsword attack, dealing 1d8+5 radiant damage. It's initiative is right after yours. If you are engaged when you cast this spell, the aasimar automatically makes an attack against the creature you are engaged with. If it dies, it explodes into golden light and you take 1d8 necrotic damage.