D&D 5E Potential House Rule for More Wild Magic

el-remmen

Moderator Emeritus
I like the idea of wild magic and there is a sorcerer player in one of my current groups who has that as the source of her magic. However, not once since we've been playing has there been a wild magic surge and we are both disappointed!

I am looking for a way to up the chance of a wild surge without making it too onerous.

I am considering changing the roll to having to roll a natural '1' to a range equal to half the spell's level rounded down. Thus, once you start casting 4th level spells those have a surge on a 1 or 2, 6th level spells on a 1, 2 or 3, all the way up to a 4 in 20 chance for 8th and 9th level spells (not that we'd ever get there - my games usually end around 10th).

Some part of me still feels like that is not a big enough chance, but at least it is an increasing chance and ties it to the power level of the spell being cast.

Whaddya think? Problems? Pitfalls? Other suggestions?
 

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DND_Reborn

The High Aldwin
I did this quickly, but I don' think anything is wrong. Someone else can check it LOL.

Below is the overall probability of a surge during the casting of every spell slot available. It does not take into account gaining slots from sorcery points or vice versa.

As you can see, you are increasing the chance of a surge for higher level spells, and since you gain more spells as you level, you are at about a 50/50 chance of surging once per long rest if you routinely cast all your spells.

1645574095515.png


So, if that's what you want... there you go. :)
 



I like the idea of wild magic and there is a sorcerer player in one of my current groups who has that as the source of her magic. However, not once since we've been playing has there been a wild magic surge and we are both disappointed!

I am looking for a way to up the chance of a wild surge without making it too onerous.
Is the sorcerer using their Tides of Chaos feature? Because once they use that the DM can decide that any spell triggers a wild magic surge, which recharges the ability. Seems like you may be overlooking this if you are complaining about the lack of surges.
 

el-remmen

Moderator Emeritus
Is the sorcerer using their Tides of Chaos feature? Because once they use that the DM can decide that any spell triggers a wild magic surge, which recharges the ability. Seems like you may be overlooking this if you are complaining about the lack of surges.

Is it possible that I have misread this rule? I just thought it meant you roll for it, which come to think of it, doesn't make sense because I can make her roll for it when she casts any spell of 1st level or higher.
 

DND_Reborn

The High Aldwin
Is it possible that I have misread this rule? I just thought it meant you roll for it, which come to think of it, doesn't make sense because I can make her roll for it when she casts any spell of 1st level or higher.
If you want to regain Tides of Chaos before finishing a long rest, you automatically surge on the spell cast to regain the feature, and thus just automatically roll on the table.
 

Is it possible that I have misread this rule? I just thought it meant you roll for it, which come to think of it, doesn't make sense because I can make her roll for it when she casts any spell of 1st level or higher.
Yeah, I think you interpolated the normal "DM can have you roll a d20 to determine if you get a surge rule" into the Tides of Chaos rule, where the DM directs the player straight to rolling on the Wild Magic table whenever the DM decides.

But any rule for a less "DM decides when it happens" approach is much appreciatied.
 

pukunui

Legend
This is my house rule for wild magic sorcerers: "When you cast a sorcerer spell, you trigger a surge if the result of your d20 roll is equal to or less than the spell slot level you used to cast the spell."

So, in other words, if you cast a spell using a 9th level spell slot, you'll trigger a surge on a roll of 1-9 on the d20.

The idea being that the more powerful the magic, the harder it is to control.


Sadly, I haven't had anyone play a wild magic sorcerer in a very long time.
 

toucanbuzz

No rule is inviolate
I am looking for a way to up the chance of a wild surge without making it too onerous.
We house-rule the chance goes up by 1 every time a spell is cast, reset on a long rest or a surge. Thus, after 1 spell, the next chance of a surge is 1-2 on d20, then 1-3 on d20, and so on. The power of the spell is irrelevant (consistent with prior editions), but enough casting and a surge will happen. This is less likely for 1st level characters who have few spells per day, but more likely for higher level characters.
 


Charlaquin

Goblin Queen (She/Her/Hers)
I have a Wild Magic sorcerer in my current campaign. I have a wild magic surge trigger whenever:

• She rolls a natural 1 on a spell attack
• A creature rolls a natural 20 on a saving throw against one of her spells
• She loses concentration on a spell

Makes it feel like a mishap, even though more surge effects are beneficial or neutral than harmful.
 

Kobold Stew

Last Guy in the Airlock
Supporter
As said, Tides of Chaos lets you and the player have surges as often as you want.

1. Player gives themself advantage with TOC.
2. The next leveled spell they cast, they can surge (your choice). That also resets TOC.
3. see step 1.

Step 2 requires player buy-in (they are choosing to cast a leveled spell aftert they'vbe played godling with fate), and can be limited by the DM (who can make the surge the default, or make it happen any time the player isn't talking about surging, or whatever). But there shouldn't be a shortage, and that then lets them give themself advantage again.
 


el-remmen

Moderator Emeritus
My last wild mage wanted to surge. I just told him to roll every time, sometimes even on cantrips. The group loved it

That is what we're doing! And maybe we're a statistical anomaly, but not one surge yet!

On the other hand, the first time someone tried to use a scroll of a too high level there was a mishap!
 

el-remmen

Moderator Emeritus
even though more surge effects are beneficial or neutral than harmful.

I actually have a few different wild surge result tables (adapted from 2E) and i have the player roll the percentiles and then I choose which result of that number from the table with the result that is most interesting in the moment or most appropriate to the situation. Or at least, I would do that, except as I said above. . . no surges in over a year of play!
 


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