Okay, so
You buy some sort of special brewing machine from the twilight underground, highly dangerous and untested. Install it in your hideout
There are various ingredients you can find that are stimulants
You place three in the machine, along with an energy drink
These ingredients plus the effects of the energy drink cost the same amount of caffeine as the energy drink and you automatically drink the concoction before it gets cold, loses some potency (solves db issue)
Possible ingredients effects?
Stats
Time
Chips
Items
Damage
Some combos could have synergies that give bonuses on top of this.
So, if you have a bray (120 minutes, 5 caffeine)
Ingredient 1: Taurine - +10% chips
Ingredient 2: Guarana - +25 minutes
Ingredient 3: Ginseng - +10% Strength
You'd get a 5 caffeine 145 minute +10% chips, 10% strength energy drink. Sounds overpowered, right? Except you had to farm three ingredients, and use up a valuable bray. That's prolly 12k right there. But the madness does not stop, oh no it doesn't!
If you put in an ingredient on top of an already powerful drink, the amount of stimulant will give you a crash after the high wears off (the high = the amount of time the drink gives). So the following applies to Teas and Bray/Scalpels.
Now, three slots, right? Imagine there are five categories of components.
Stats
Time
Chips
Items
Damage
Now, each category requires a different antidote for when the high/effect wears off. Else, you'll get a nasty crash. (The crash gets worse for each antidote missing). So, next to each box for the ingredient, is a box for antidote. You can choose to put it in or not. Now, here's the interesting part.
Each class gets a skill to summon two antidote per day. Except that each class is tied to a category. But neo, you say, there are five categories. Ah my friend, this is where my brilliant brain said, "neo, don't give a class time, it's too powerful!". So time is given to every class, the second item in the summon. Or, maybe you can buy two per day, one appropriate to class and one for time.
And, of course, this is to promote trading and stuffs, so the actual ingredients for bonuses are farmable.
Yay!
So that
5 caffeine 145 minute +10% chips, 10% strength energy drink.
is actually closer to 15k, if you want to prevent bad effects afterward.
Sounds a bit complicated, but it can be made simple for the end user. Say the following (with more wit and humor):
This machine is capable of mixing various ingredients you've stumbled upon in your nightly travels into your stash of energy drinks, making very potent concoctions. Be careful when adding stimulants to already powerful drinks such as Mr. Teas or Energy Drinks, as you may need antidotes to prevent a crash.
(You will drink your concoction immediately after brewing!)
On one side there seems to be a place to pour in your drink base:
Drink:
The other side has several compartments, that seems to come in pairs:
Ingredient 1: Antidote 1:
Ingredient 2: Antidote 2:
Ingredient 3: Antidote 3:
If multiple of the same ingredient is entered, give an appropriate error, if antidotes are entered for non teas/brays, either eat them or say they are unneeded, or entirely ignore them.
(White pills don't work in the machine. It needs liquids for the base)
Edit: Obviously, the effects would last for the length of +time of the created energy drink.... (or maybe the base drink time :/)