How would other NPCs give magick regen?

while it makes sense how other npcs did not have magick regen, i played around in my mind how would the mechanic work if they did, here is some i thought of if they were implemented as the conventional boon giving gods:

(Dionysus)festive gain- standing around the festive fog would give some magick back; or

drunken gain- you gain the amount of magick your hangover effects deal (but i think a boon that is a consistent source of hangover is needed).

(Artemis)critical gain/accurate gain?- everytime you hit a critical you gain magick, also gain a small amount of crit chance

(Hermes)marathon gain- everytime you run or sprint you gain magick( it can be every certain distance = some magick, or you gain magick as long as you are running or sprinting. either way it can be boosted by boons buffing your move speed).

(Athena)riposte gain- everytime you deflect, you gain magick

(Circe) transmutation gain- damaging enemies have a chance to be turned into magick outright( i think this will be a mix of shocking loss and fluid gain. so im not so sure about this)

I can't think of how Hades would have this mechanic. maybe something with souls or death? i also have an idea for Icarus called artificial/manufactured gain. but i can't think of anything else other than the name lol, also do you guys any other ideas on these mechanics?