I think that having a range of monster types representing all CRs is a good thing. (Mind you, this is not the same as saying that the Phantom Fungus is a good monster...
)
As a DM, I like customizing a monster until it screams "No more pain, Master!" as much as anyone. But there's times when the party does something I just never expected, and that's when having a critter I can use off the shelf is crucial. Since higher level parties have many more abilities to surprise me with, it's more important to have well-designed base creatures on hand for higher CRs than for the lower range.
CR is a useful index even if one particular group of 12th-level characters is more or less powerful in a certain situation than the CR estimate expects. As the DM, I'll have gotten a handle on this translation factor already, and if I have both a CR 10 and a CR 14 undead to choose from I can quickly be prepared whether I'm running an atheistic party or one that's heavy on divine power.
As a designer, I find it a challenge to my creativity to look at gaps in the existing array of monster types. By definition, this demands that I come up with a kind of creature that no one has done before! Trying to think about what a huge CR 10 fey would be like, for example, is often a good source of inspiration for me.
One of the first things we did when we started work on the Masters and Minions series was to do a gap analysis on the SRD monsters, looking at type, subtype, alignment, etc. The good news is that there's lots of under-explored combinations, enough to keep designers busy for quite some time! I'll post a link to the chart we made as soon as it goes up on our site; email
nat@behemoth3.com if you're impatient (and have Filemaker
)
Knight Otu said:
As far as I can tell from my Excel file, the official sources do pretty much have undead for most CRs
Is your Excel file publicly available? I've been working on a mega-index of monsters, building on
Seeker95's, and I'd love to know of any others that are out there.