Base Class: Rogue
The chemist is a support class that makes potions for many different types of effects. Chemist make potions to distract, dehabilitate, and in rare cases, damage their opponents. Chemists focus on their wisdom and to know what potions to use, when to use them, and how to make them.
Amateur Chemistry
At 3rd level when you choose this archetype, you gain a proficiency with Chemist's tools. During each long rest you may choose to make a set of Three potions of Minor Healing (1d4+1), a set of 5 Minor Explosive Potions (1d6), or a set of 3 Smoke Bombs (used on a 5ft area, AC+2 and disadvantage when attacked)
Higher Chemistry
At 9th level, you gain the ability to create a set of 3 Exceptional Explosive Potions (2d6+3) or a set of 3 Potion of Exceptional Healing (3d6+3) over a course of two days. You also gain the ability to craft Rare magical potions from the list of Potions.
This is Bad...
At 3rd level, you can use a potion as a reaction when you're attacked with a Melee weapon. Using a smoke bomb increases your AC by 2. Using Explosive Potions deal regular damage, and you take the potion's minimum as damage. Using a flash bang disorients your opponent, giving them disadvantage on their attacks this turn.
Greater Chemistry
At 13th level, you gain the ability to make Excellent potions of healing (9d4+10) and Excellent Explosive Potions (6d6+10)overthe course of a two workweeks. You also gain the ability to craft Rare and Very Rare potions.
Master Level Chemistry
You gain the ability to make Legendary potions, or potions of your own design. The difficulty and brew time of the potion is at the Game Master's choice.
Flashbang
Flashbang are a special potion. They are brewed in sets of 3 over a week. Using a flashbang makes the target roll a Dexterity save to cover their eyes and ears. If they fail, they are stunned until their next turn.
Smoke bomb
A smoke bomb is a special potion. Using a smoke bomb targets a 5ft. Area, filling it with a thick smoke for the turn before disapating. Anyone in the square gains +2 Ac bonus while in the square, and attacks on them have disadvantage.