The Mistcaller

Call Mists

Starting 3rd level you gain the ability to cast Call Mists a number of times per day equal to your intelligence modifier. While within your Call Mists or any non-magical mist or fog, you don’t have disadvantage on Perception checks.

You regain all expended uses of Call Mists when you finish a long rest.

Disperse

Also at 3rd level, while within your Mists, if you Sneak Attack during your turn, you remain hidden even after performing the attack.

Mist Walk

At 9th level, you learn to become the mist itself. You may take a bonus action to transform your body into mist, granting you the following effects for 10 minutes:

You may interact with objects, but you cannot attack while in this form.

You have advantage on Dexterity (Sleight of Hand) and (Thieves' Tools) checks.

You gain a fly speed equal to your base speed.

You may move through creatures space without provoking attacks of opportunity.

You may move through tiny gaps without squeezing.

You have resistance against bludgeoning, piercing and slashing damaging.

You are vulnerable to cold damage.

You may use a bonus action to return to your normal form.

Once you use this feature, you can't use it again until you finish a short or long rest.

Flash Fog

Beggining at 13th level you learn to quickly respond to a threat. When you roll for initiative you may cast Call Mists as a reaction. When you do so, for the first turn during combat, you and your allies have advantage on attack rolls against creatures inside the mists that have not yet acted; and enemies have disadvantage on attack rolls against creatures inside the mists that have not acted yet.

Additionally, non-magical fog or mist no longer hinder your sight.

Red Haze

Starting at 17th level, while within your Mists, you may take an action to make a melee attack, with advantage, against every enemy within the area of your spell. Roll separetly for each attack.

You may use your Sneak Attack during this effect.

You can't use this feature again until you finish a long rest.

Call Mists 1st- level conjuration Casting Time: 1 action

1 action Range: 30 feet

30 feet Components: S

S Duration: Concentration, up to 10 minutes. You create a 40-foot-radius of mist centered on a point you can see within range. The sphere spreads around corners and through small openings, and its area is lightly obscured. It lasts for the duration or until a wind of moderate or greater speed (at least 10 miles per hour) disperses it.

Credit: Xu Zhang

https://www.artstation.com/artist/xuzhang