Monster De-Advancer?

[theos911]

I had a neat idea for an NPC dryad wizard whose familiar is his/her tree. I wanted to use treant as a base, but the monster advancer(A Great tool!) only works in forward mode. I can do it manually, but I was wondering if there is any online creature De-Advancer.

Thanks

[Runestar]

One way is to use the monster class PC tables in savage species to de-advance monsters. They even come with appropriate crs at each breakpoint, so half the work has been done for you.

[theos911]

So, I would just use the First entry (1HD and CR 1) for the familiar then?

[Runestar]

So, I would just use the First entry (1HD and CR 1) for the familiar then?

However much you want to. It's cr1 for the first 2 HD, so I see no harm in giving it 2 HD.

[Serpentine]

Sounds like a job for homebrew to me - a treant "sapling" type thing.
Alternatively, animated plant?

[TheOverlord]

I had a neat idea for an NPC dryad wizard whose familiar is his/her tree. I wanted to use treant as a base, but the monster advancer(A Great tool!) only works in forward mode. I can do it manually, but I was wondering if there is any online creature De-Advancer.

Thanks

While the Monster Advancer by its very name does give the impression that it can only advance creatures this is not actually the case. After you select a creature there is a checkbox to allow you to select your own advancement sequence...this means you can enter your own specified size and hd. While the CR isn't going to be terribly accurate it does lower the CR based on the same system it uses to raise it. The inaccuracy comes in from the creatures' innate special abilities as well as how quickly a disparity between hit points and overall power arises. For the treant that would be things like damage reduction 10/slashing which is very powerful for a creature you are shooting to be CR1 but even with that a 1 HD Medium treant with all its normal powers is definitely not a CR5.

With that said, these can be easily adjusted based on what CR you are actually going for. I would re-size and adjust the HD and just eyeball the CR as you see fit. (That is the best you can do for anything when advancing or de-advancing. I actually have a CR auditor/estimator based on Pathfinder creature creation rules, but I have never released it...I use it more for auditing my own homegrown creatures or checking on creatures when I can tell the CR is way off for one reason or another.)

In this case, my auditor seems to think the following (normal CR/audit suggested CR):
Normal(7HD Huge) Treant - CR 8 vs CR 6.33
3HD Small treant - CR 4 vs CR 4
1HD Medium treant CR 5 vs CR 3
20HD Colossal Treant CR 13 vs CR 13.47

Links to Treants of all shapes and sizes:
Normal Treant
Small 3HD Treant.
Medium 1HD Treant.
Colossal 20HD Treant

Have fun!

[Waker]

If you want a druid to have a plant companion, you can use Dragon 357.

[theos911]

If you want a druid to have a plant companion, you can use Dragon 357.

Well, the original idea wasn't a plant companion, it was a dryad whose familiar was a plant. I will take a look though; you have peeked my interest.