Your pure intelligence in mind and body. Your intelligence increases by 2

because you can change you appearances you are liked by all. Your charisma increases by 2

Your physical strength is weaker than all others. Your strength goes down by 4

You are classified as a living construct which means the following.

you do not need any food or drink to survive.

you do not need to breathe.

you do not sleep but enter a trance like state similar to elves for at least 4 hours you are considered awake and are fully aware of your surroundings.

you can’t be poisoned or put to sleep by any means even magical.

you also have advantage against being charmed.

Because your body is made up of ever moving crystal your appearance is not set in stone. You have the ability to change your physical appearance to that of any medium humanoid this includes anything from a dwarf to a dragonborn and anything in between. You are unable to increase  your weight because you can’t add shards to your form although you can decrease it to fit any given form.

Do to your ever shifting form you can adapt you body to allow you to burrow, climb, swim, and fly. You can only go 15 feet and do not revert to walking after going that far. You can chose to end your turn in whatever type of movement you ended on this includes flying but you are completely still at the point you chose to stop moving.

you can fly 15 feet in any direction 

you can burrow 15 feet in any direction. You can only burrow in materials that have an AC of 10 or lower

you can swim 15 feet in any direction 

you can climb 15 feet in any direction 

Your body can become either armor or weapons at the cost of losing the ability to use normal weapons and armor. You are proficient in these created weapons and armor if you are not so already.

At 1st level these weapons and armor are considered regular and magical.

At 5th level these weapons and armor are considered +1 and are magical.

At 10th level these weapons and armor are considered +2 and are magical.

At 15th level these weapons and armor are considered +3 and are magical.

For weapons you can form 1longsword, 2 short swords, 4 daggers, or 8 darts.

For armor you can form a shield +2 AC, no armor 5 AC, light armor 10 AC, medium armor 15 AC, or heavy armor 20 AC.

Due to your limited amount of crystals that make up your body you can only due the following combinations. 

1.any weapon and no armor with a shield.

2.any armor with no weapon with a shield.

3.light armor with any weapon lower than the long sword and a shield.

4.medium armor with any weapon lower than the short swords and a shield.

5.heavy armor with any weapon lower than the daggers and a shield.

You can communicate with any creature as long as it knows any language it doesn’t have to be able to speak the language it must know it though. The creature does not have to be willing.

your telepathy has a range of 120 ft