Creating the Full Level Alchemist! A support build with prep time for Dungeons and Dragons 5e! 

Thank you, Alex! Excellent support build idea and I enjoyed your clear run through. I appreciate your view on it and the discussions it created below. Here's hoping OneD&D does it justice in the future!

If you consider alchemist elixirs as extra always prepared sub-class spells the feature suddenly sounds much better.. So now our 3rd. level feature is, you have these eight spells always prepared, plus one random extra that you can cast without using a spell slot. Another thing to consider is effect stacking. With exception of transformation elixir, which mentions alter self spell, all the elixirs are their own unique effects stacking with each other and your spells. You already mentioned courage + bless. Others to consider are: speed + longstrider for + 20 ft. movement for full hour. Flight + Expeditious Retreat / misty step, or combine with speed boosts above. If you have monk in party they will love transformation for d6 unarmed and +1 to hit and damage and I guess your rogue would not mind having instant disguise in pocket either. Finally healing elixir + healing word makes alchemist one of the most efficient single target healers in early levels, or jojo two downed friends in single turn. Unless your party has multiple healers, alchemist should pretty much always spend one of their slots for a healing elixirs and give it to the hardiest non-caster in the party for emergencies.

Alchemists should get the Alchemy Jug Infusion for free and receive double the yield from it, so you'd have the option to use acid, oil, small amounts of poison...mayonnaise, etc. Maybe some mechanic to give a free cast of Catapult per short rest to pair with it? Maybe a feature similar to the Thief's Fast Hands to allow more economical weaponized object interactions with it? I wish Alchemical Savant included to the ability change the damage type of any spell (and maybe Artificer cantrips) to Acid, Fire, Poison or Necrotic too, kind of like the Scribes Wizard. It feels pretty thematic to me with an Alchemist mixing together different reagents to generate his/her spell effects of those damage types. The way it is written, the experimental elixirs seem almost unusable to me. I agree it should be free to make proficiency bonus elixirs per day on the randomized chart plus create more with chosen effects by expending a spell slot. Like you said, it desperately needs some sort of scaling too. Hard for me to imagine creating more elixirs at the expense of an extra cast of Fairy Fire (or Bless/Heroism on your build) even at low levels as written. I have never actually played one though, so maybe I am selling the Elixirs short. I think what would make this a fun class is there was just more tools in general. It feels so limited in what they can do which is weird. Personal wish...Somehow it would be nice if they got Vitriolic Sphere just so I could actual use that spell someday. I always end up skipping it because it seems redundant to Fireball.

Enjoyed your take. I want to love this sub class. I really do. But the Devs whiffed on this one. Even the Transformation Wizard doesn’t provide the mechanics to do this archetype justice.

Another unpopular subclass is the Monster Slayer Ranger. However, when I think of a monster slayer I think of Geralt of Rivia, the Witcher; and it could be a fun archetype to play around in the right campaign. Thus, I would like to see a build based on Geralt of Rivia that continues the monster hunting theme (gaining knowledge about a target, preparing for the hunt, hunting down the target, and taking it out) while accommodating for the Monster Slayer Ranger's weaknesses. On top of that, it would also be cool if the build uses a lineage that gives the character a monsterous feel, like the Shifter or the Hexblood.

How many potions are uncommon? Quite a few. And level 10 artificers can craft them faster and for 1/4 of the gold. Greater healing potion? Potion of growth?

Sure hope Artificer gets a complete overhaul in OneD&D. To actually make Alchemist work but just to fix all the glaring problems the class has.

If at the very least you could CHOOSE the free elixir you're making for free And if you could drink it as a bonus action And also if potions somehow escale with level Then it would be pretty good. At least make it so you can make a number of free potuons equal to proficiency a day.