Rules for Ritual / Spell Creation


Pathfinder Second Edition General Discussion


Hello there, everyone. Yes, it's me again XD

SO! I was hoping to find rules to create rituals or design spells in Secrets of Magic, since the spell/ritual I want simply don't exist (as of October 2022), but couldn't find any rule anywhere.
Are there rules for creation of brand new rituals/spells somewhere?

So what I want to create is the Steal Life spell from the Book of Vile Darkness from 3.5. Remember the Book of Vile Darkness? That. The spell was Sor/Wiz 8 (level 8th spell from the Sorcerer/Wizard spell list). Necromancy [Evil], Close Range, Constitution Negates, Concentration duration.
By itself it wasn't that impressive: You drain 1 point of ability (Str, Dex, Con, Int, Wis, Cha), in any order, but only 1 point per turn and if Con reaches zero the victim dies. HOWEVER, if you would cast this spell during the night of full moon inside an area under the effect of desecrate or unhallow, the caster would also rejuvenate (get younger) one week per point drained. Draining a normal person (10 on all stats) make the caster 60 weeks younger, that's 420 days. Each victim you kill in this particularly ritualistic way makes you one year (and 55 days) younger, effectively making you "live young forever", if you don't mind the sacrifices.

I understand in PF2 age is just fluff, but as I said in previous posts #fluffmatters.
I understand rituals like Bathe in Blood have similar function and Mind Swap too (if you don't mind the body exchange), but I was hoping to use this ritual/spell, because Bathe in Blood has a limit (cast it 20 times and you'll have -19 on the test of your 21st attempt).

So, that's it: are there rules to create rituals? Where? How would this ritual be if you were designing it? Thanks a bunch o/

Shadow Lodge

I doubt you'll see any such rules any time soon: Given that they introduced rarities to keep certain 'annoying' spells under control, introducing a new system that would allow players to bypass rarity entirely by personal research seems very unlikely.

Also, I don't believe any edition of this game family has ever had 'real' spell creation rules for players: There are just way too many potential issues...


Way back when, I once saw a 3rd party rulebook that was d20 compatible that had some rules for creating spell effects of the character's choosing.

I tried using it once. It had a ton of issues.


Pathfinder Maps Subscriber; Pathfinder Roleplaying Game Superscriber

There are no such rules. It's totally DM fiat.

The only recommendation we can make is that it should be very time consuming, and give results in line with existing spells.


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No rules would be as effective as "go look at our existing rituals".

If I were making it, though, I would just take the Mind Swap permanent version and use that as the basis for a ritual to swap ages. Not murdery enough yet, so let's throw on that you age twice as fast while the other person is still alive. You could swap bodies for the same difficulty, so it's not unbalanced, even if it's a better deal than Bathe in Blood.

Alternatively, take Bathe in Blood, make it a ritual sacrifice instead of a blood requirement, it only takes off one year of aging, and allow it to be repeated without penalty.

I'd drop the stat draining because that feels aggressively 3.5-ish and out of place.


QuidEst wrote:

No rules would be as effective as "go look at our existing rituals".

If I were making it, though, I would just take the Mind Swap permanent version and use that as the basis for a ritual to swap ages. Not murdery enough yet, so let's throw on that you age twice as fast while the other person is still alive. You could swap bodies for the same difficulty, so it's not unbalanced, even if it's a better deal than Bathe in Blood.

Alternatively, take Bathe in Blood, make it a ritual sacrifice instead of a blood requirement, it only takes off one year of aging, and allow it to be repeated without penalty.

I'd drop the stat draining because that feels aggressively 3.5-ish and out of place.

You know what, yes, just YES. Why create a whole new thing when a small tweak in an existing thing would do the job. Thanks for the idea o/


Invictus Spartan wrote:
QuidEst wrote:

No rules would be as effective as "go look at our existing rituals".

If I were making it, though, I would just take the Mind Swap permanent version and use that as the basis for a ritual to swap ages. Not murdery enough yet, so let's throw on that you age twice as fast while the other person is still alive. You could swap bodies for the same difficulty, so it's not unbalanced, even if it's a better deal than Bathe in Blood.

Alternatively, take Bathe in Blood, make it a ritual sacrifice instead of a blood requirement, it only takes off one year of aging, and allow it to be repeated without penalty.

I'd drop the stat draining because that feels aggressively 3.5-ish and out of place.

You know what, yes, just YES. Why create a whole new thing when a small tweak in an existing thing would do the job. Thanks for the idea o/

Happy to help, and have fun with subscription-model immortality!

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