Origami

The ancient art of origami, along with warrior magic and combat skill

Origami Magic

Starting at 3rd level, after finishing a long rest, you can spend one minute and 10 GP to create a magical paper weapon. You can only create a weapon with which you are already proficient, can not have the heavy characteristics and the weapon must cause slashing or piercing damage. While the weapon is enchanted it does not burn or become soaked or suffers any effect that would normally destroy a paper. You can keep a number of Paper weapons equal to your intelligence modifier (minimum 1). By creating a new weapon beyond its maximum, randomly one of the ready-made weapons becomes common paper again.After of the ritual, the weapon become hard and sharp like a normal weapon.
Their blows count as magical weapons for the purpose of overcoming resistance or immunity to attack and nonmagical damage. 
After the 7th level, you can add half of your proficiency bonus on attacks and damage rolls.

Better Paper

Starting at 7th level, you can spend 8 hours and 300 gp to make a paper armor. This armor give you 13+ dexterity modifier. This armor cannot be destroyed by a effect that normally would destroy a commum paper. Additionally you can spend 50 gp and 1 hour to make a shield.
This shield and armor, at level 11 will be +1 and +2 in level 15

Light weapon

At 10th level,  now you can make paper weapons with the two-handed and heavy property, but they still have these properties. In addition, all paper weapons that do not possess heavy and two-hand properties gain light property

.

Light wings

Starting at 15th level, now you can make magic paper wings, with a action, you can unfold a paper weapon to make it become a paper wing. For 1 minute you gain flight speed of 30-foot.

Wallpaper

When you reach 18th level, you gain the ability to completely cover up with one of your paper weapons, unfolding it to avoid hazards you may see. When you are the target of an attack or spell that you can see, you can use your reaction to increase your AC to +3 or to add +3 to a Dextery skill roll you need to perform. You can use this effect before or after the master speaks if you have been successful. You recover this feature after a short or long rest.