>>95995433Could easily be the (only) way to restore mana, or recharge specific slot(s) with specific substances (think tiers of "mana drugs")
Can be an interesting twist on the usual approaches to magic, which often already relied on consumables and/or reusable arcane foci, in case of D&D for instance.
Remove the "gets you high" part and it works like any other prescription drug, side-effects and all. Perfectly normie-safe now.
>magic is unnatural>mana needed for it, likewise, isn't normally in living organisms>it is, however, found in crystallized veins deep underground>can't be used on it's own much, needs consciousness directing it>crystallized mana is alchemically transmuted into liquid form>cue "mana injectors" with vials of the stuff>also cue "mana sickness", and a slew of other consequencesBasically a "what if mana for magic doesn't come from inside" scenario.
Slots are handled as either different crystals, or different transmutation processes.
>but won't you end shooting up magic crack to cast all day?Stacking temporary debuffs, including spell power. Somewhat like threshold alternative magic system, aka "cast now, pay later".
Damage from overdosing that can only be healed on it's own.
>how do you use up level X slot, but not the level Y slot?Different substances stack different debuffs.
Another way to do it is make casting safe only when consuming special drugs that protect from the worst backlash effects, or spreads it over time instead of hitting you all at once.
Like any drug, overdosing is dangerous, and habitual use may have consequences as well.