Good easy requirements with a solid fluff one there.
Bad have a base attribute score is bad. Bad because depending on how some people will rule it, having you Constitution score ever going below 13 suddenly means your stuff never works again.
It's one of those RAW debates, but it's there. Alternate plan: why not feat requirement? It's clunky, but just requiring the dreaded Endurance is fine, as it is more or less "Constitution 13+" without being
entirely dead end.
Odd to see new proficiencies gained, but whatever. Just sort of there
Your wording on the save is non-intuitive and just all around clunky. It's 3.5, so that's a given, but the "+X" bit is just kind of a pain. Consider using size categories instead. They are clunky, but for most cases, they will work well, both from a crunch consistency and the possible on the fly "Well, how big is a walnut?" situations and possible adjudications with objects (if need be).
Least: Love the idea of the bubble, but way, way way too easy to exploit via divide and conquer readied attacks and teamwork. Also, use squares. a 2 ft radius is roughly a 5 ft square cube, and sure as hell easier to deal with. Also, actually state what people can and can't do. Copy and paste via
Time Stop, as I am want to do, it just makes formatting so much easier. What can and can't pop my time bubble?
Lesser: Is not much growth, in honesty. Random hit points on a possibly every other round this encounter ability is bad. Just give it a random X amount. 4d6 would average to 14 HP. Round up to 15 and call it good. The one extra round is nice, but these are all small growths. Especially when, at max HP rolls, the shield gains 23 HP. Assuming standard object AC (read, 5+size modifier), it's a one hit and still popped either way.
Regular: If you want to change the size of the square-age based of how smart someone is (or, really, any other stat), your best bet would be to instead to either use pseudo-size categories (INT X+ can use large sized cubes [10ft cubed], INT more+ huge [15ft cube], etc.) or just say use random squares. No reason why time bubbles should be a perfect sphere and all.
As a side note on this, Greater, and Sublime, the difference in sizes by your spheres, going from a minimum of +1 INT up to Middle-aged human archmage +12 (barring other tricks and cheesier things possible, natch).
{table=head]Ability "level" changes (5ft cubes)|Base size (5ft cubes)|INT size changes (in 5ft cubes)
-
|
1
|
-
Least->Lesser
|
1
|
-
Lesser->Regular
|
1
|
20 INT for +1, max, 30 for +2
Regular->Greater
|
~1.5-2
|
20 INT for +2, max, 30 for +4
Greater->Sublime
|
4
|
20 INT for +2, max, 30 for +4
[/table]
It takes me making that table to roughly approximate that. In the end, size categories are faster and easier, more so with figs or photocopies from the back of the PHB. It's also easier to grasp, as 2D thinking is generally easier than 3D thinking. Human "okay size," ogre more size, and huge and above just
eat needless space.
Permeability look interesting, the real meat of the class, I suppose. You need to state when and how and where I get counterfluxes. Looks like a lot of notes without much crunch. Nice, but not a finished class, sadly.
Time Denial is nice for debuffs not working, but really rustles my jimmies on also hurting buff spells. Yeah, I know, thematic, but it just irks me.
Stillstrider is a small teleport. I like it, even if I am all over Witch of Space this contest, too.:smalltongue: Possibly because of it. Wording needs a bit of tweaking, possibly an example text sentence or so.
Forcewrap is free magic voodoo. You should say what being a force weapon actually does: just copy and paste something from magic missile or some such, maybe a dash of brilliant energy weapon property for flavor. Describe what it does for both armor and weapons too. The differences matter.
Flashstrike needs way more clarification text. As is, it is a standard action attack to deny dex. Not bad, but, eh. Removing crit is similarly "bah" in design goals. Not a fan of the penalties.
I like the Ripple effect. Very good design. Maybe consider allowing Xty teammates be able to avoid the negatives, too? also, describe corner cases with weird magic and ranged attacks. If I'm in the voodoo bubble, but you aren't - or the reverse, what is happening?
Suppress Reactiveness is too good. Free action (read, blow all uses in a day to kill all your magic gear) via a free, not-gonna-lose-to-Caster-level
Dispel Magic? No, just way too much there. Yeah, I know there are a lot of swift action stuffs in the class. At least throw a "once per round" limit there.
Delay Amputation is nice for bleeding effects, but kind of "bleh."
Membrane Sharpness should probably use a better term other than "half" for the DR purchase. We all know of the mountain hammer lockpick? Why not just say "nope, no DR for you! (Hardness goes wit it)!"
Still Mastery is poor design, as it allows Plot!Excuses to just stop your stuff for random reasons. Yeah, having a bigger and badder dude than you can work, but I dislike just automatic abilities where you entire shtick within arbitrary area just doesn't work now, cuz I say so.
Overall, I like the possibilities of stillspace, but find them lacking as it stands. Good, interesting design is hard, formatting more so.