Advancing Rust Monsters [Archive] - Wizards Community

Post/Author/DateTimePost
Kaminton

06-20-03, 10:28 PM
I'm advancing a rust monster from 5HD to 15HD, to increase its CR from 3 to 6. Anyway, I'm looking at its Rust ability, and I don't see how the DC 20 reflex save for magical items was calculated. Most other abilities are 10 + 1/2 HD + Con or Cha mod, but this one doesn't work in this case.

I'm wondering if I should leave the DC 20 as is, or if I should recalculate it. How high do you think it should be to reflect the increased CR?

(and yes, the players are a tad on the wealthy side; no, I've never used rust monsters before in this campaign)
Mattack

06-21-03, 12:21 PM
Try to make it a derivative of a rust monster. Perhaps one that evolved into one that has a specific appeitie for magical items and can sense them. While also working on this that they have a small collection of fellow and lesser rust monster to work with it. Then you can recalculate the DC and maybe lower its HD.
Mirtek

06-21-03, 05:12 PM
If you want to be really mean, use a rust dragon. With the age categories you can have one for almost every CR.

Imagine the rust ability together with the physical and magical might of a great wyrm dragon :b:
Kaminton

06-21-03, 08:41 PM
I'm not trying to be mean, really. These are just "pets" of a drow wizardess whose tower the party will want to attack in the near future... So I'm quite happy with CR 6 (2 of them for CR8, the party average level is 10). I mean, they won't be much of a threat, but it would sure remove some items (and the tower is loaded anyway, I want to reduce their wealth a little before I bloat them with new treasure).
Mirtek

06-21-03, 08:50 PM
Juvenile Rust Dragon, CR 8 :b:

And a much greater surprise when the dragon breathes and the fighter suddenly finds himself in his underwear, without any traces of his armor left :omg:

Honestly, most players know about the rust monster, but i am surprised about how many seem to have never heard of the rust dragon. I really thought more players would read the Dragon Magazine.
Kaminton

06-22-03, 05:12 AM
Well, I don't read Dragon magazine either. Which issue has this rust monster monstrosity?
Mirtek

06-22-03, 06:35 AM
Issue 300
CR 3 for a wyrmling up to CR 24 for a great wyrm