Circle of the gem

Gemstones to improve defences of themselves and those around them.

Armour of Crystal

Your AC is 13. If a creature attacks you and misses by more than 5 you can use your reaction to cause 2d4 piercing damage to your attacker.

Shield of Glass

Using a pool of d4s equal to your level x 3. As a bonus action you can expend these dice and choosing a target 120ft from you giving the amount you rolled to the target as temporary hit points

Gem of Power

Choose a gem to give resistance to the allocated damage type you can also use your bonus action to add half your level in d4s to you weapon damage in the respective damage.

You also gain the following additions to your wild shapes.

Amethyst (Poison)

your wild shapes gain an aura of sickness which allows to manifest it as an action to force creatures within a 30ft radius to make a DC 13 CON save or become poisoned (they can repeat saving throw on each successive turns)

Aquamarine (Cold)

your wild shape forms gain the ability to cast water walk at will as well as a swimming speed of your walk speed

Diamond (Radiant)

You can use an action to shed bright light in a 30ft sphere centred on you as well as dim light in another 30ft.

Emerald (Acid)

you can touch a body of water and tunr it into acid using an action and maintain concentration on the spell for 1 minute

Moonstone (Psychic)

can cast detect thoughts at will

Onyx (Necrotic)

You can use an action to summon 1d4 shadows

Quartz (Force)

you gain the mage hand cantrip

Ruby (Fire)

Your wild shapes form gain a breath weapon of fire in 15ft cone CON save DC 13 which recharges after your wild shapes finishes or you roll a 6 on a d6 at the end of each of your turns

Sapphire (Thunder)

you gain the thunderclap cantrip

Topaz (Lightning)

you can cast lighning bolt in your wild shape form but you must roll a 6 on a d6 to recharge it at the end of your subsequent turns

Stonetouch

If you are standing within 5ft a target of a melee attack you can use your reaction to add 3 to their AC

Encrusted Cover

You can use an action to summon 15ft of half cover in front of you one piece of cover must be within 5ft of you. This cover has 15hp with an Ac of 13 and lasts for 1 minute unless. You can do this up to your wisdom modifier before taking a long rest

Crystal Cocoon

You touch a dying creature giving them a + 5 to their AC using an action