This rather depends, on how far can we dumb the recipe down. Alchemy is a mortal discipline. It can be performed by mortals. And everyone is magic, at least a bit. We could probably put our exalted mastery to simplifying the process of brewing the immortality potions. Basically, dumb it down, improve it to the point where barely trained practitioners can brew it, then patent it and get it through FDA. Get the ParaNet minor talents a job brewing this thing in industrial quantities.
Regarding XP spending:
We need to spend XP to generate XP. This means we need stuff that produces opportunities and new, well, experiences. So far, there are two types of actions that we seem to use the most: crafting and socially crushing creatures of darkness. The next arc (or the one after that) is likely to deal with Chicago underground, and making a Dragon's Nest. This means, that we should enhance our options where it comes to those. As such:
"all things made easy" part:
Boiling Oil Mastery 4xp
Transcendent Lord of Flies 4xp
These two are universal, or near-universal difficulty adjusters. Both of them also grant protection from environments at no essence cost. At 1 XP Transcendent Lord of Flies also renders us immune to environmental damage (meaning that we could chill out in burning buildings and gas chambers). Boiling Sea mastery provides us additional movement options in and outside of liquids too. These are must-get. They would allow us to do more, and to do it better. They would also allow us to explore more environments, such as to easily mount expeditions into NeverNever (which is almost certainly a "hostile, barren environment" as it was). I want to explore the "scar" where our exaltation was found, for example. And we might want to check some other places.
Social minion gathering:
Mercy in Servitude 4xp - this is for White and Red court vampires, and red court half-vampires (meaning that Harry can have Susan back, I think). It's a powerful tool to ensure someone's loyalty.
Craft:
Excellency: Technology 4 XP
Technology 2 dots, 2 XP
We are going to be building Dragon's Nest. Stuff like active air conditioning, power generators, defensive turrets, etc, are all technology. We use craft a lot, and this expands what we can craft with legendary successes.
This is 18 XP so far. After this, depending on how much XP we get, we have several options:
1) Assuming we have 20 XP
Throw out 2 dots of technology and switch to either Computers Excellency (can we do this with no dots in Computers?), Murder is Meat (we need a spirit killer in general), Prince of Ruin Attitude (for being able to use broken items, and not having to care about stuff like fuel and phone charges at no essence cost), or Naked Wicked Souls
2) Assuming we have 21 XP, add Prince of Ruin Attitude or Naked Wicked Souls. I am partial to Prince of Ruin Attitude, but Naked Wicked Souls has a lot of potential for getting us new information and, thus, plot. With excellency we roll 10 dice, at maximum difficulty of 9, so at the cost of 2 XP, we are almost guaranteed to learn secrets of almost anyone.
3) At 22 XP, throw out Technology 2 and buy both Prince of Ruin Attitude and Naked Wicked Souls.
3) At 23 XP, throw out Technology 2, and add Computers Excellency and 1 dots in computers. This should synergy with our cyberdevils.
The core idea of this spending plan is to finish building the foundations and to be able to generate as much XP as quickly as possible.
There are some questions for our QM that I'll need to ask regarding several of these, though. Specifically in regards to Naked Wicked Souls (can they be used on recordings, or is it only direct physical line of site? Can it be used multiple times on the same person, to try and roll 5 successes if we have time?) and Rendered Villain dispersal (specifically on how large the bodies of liquid we can disperse in are, and how re-materialization works - depending on the answer, we could use it for liquid-based teleportation and long-range transportation).
I'll appropriate some of those if you don't mind. Also, I read the text to mean that Rhys the Ragged is dr. Niemi's real identity. @DragonParadox am I right or am I misreading this?
[X] Try to strip as much equipment and arcane machinery as you can out of the base
-[X]Cremate human/mutated human bodies if time available
-[X] Use Tool Transcending Constructs to increase the rate of packing and to make an amphibious trailer to pack it all in.
--[X] Use craft excellency
-[X] Use the crown:
--[X] On Rhys the Ragged to discern the identity of the ultimate beneficiary of this scheme. Who was this done in service of?
--[X] On laboratory equipment to learn what other assets Pathfinders have
--[X] On Lydia's frogman: Structure of the society of those(Fomori) who enslaved him
-[X]Cremate human/mutated human bodies if time available
--[X] Ask Lydia to help sending them off.
-[X] stunt: as you stare at the horrific assembly, part of you wants to burn it all down. To smash and cut and destroy until not even a memory remains. But... "The best revenge is living well" you mutter, "We are taking it all, and putting it to better use. Using this for good is the best we can do for its victims now". As you speak, your aura unfurls, robotic tools manifesting. Some of them start reshaping the surgical tables, cabinets and other easily replaced objects into a watertight amphibious trailer. Others assist your father and Lydia in preparing everything you can see for transport.
Crown use should be either essence neutral or close to it. Craft and excellency are either 2 or 3 points. This leaves us with 2 or 3 points in case of emergency. Not enough for shintai, but enough to fight our way out of a situation.
We could go all in: buy a GPS module, install it into the submarine, then HMP it. Have it serve as the guardian of the lake or some such.
