Some number crunching for you:
Assuming a barrier adept of a certain level, how much max damage can he/she do...
(assuming all barriers are formed, and each "casting" encompases the maximum number of medium or smaller creatures)
1st level adept(1d6): 1d6 per round
3rd level adept(6d6): 2d6 x 3 (creatures captured) per round
5th level adept(15d6): 3d6 x 5 per round
...
8th level adept(168d6): 4d6 x 2 (created per round) x 8 (creatures captured)
...
19th level adept(380d6): 10d6 x 2 x 19 per round
Compare and contrast that to a wizard:
1st level (5d4): burning hands = 1d4 x max 5 creatures (cone 3)
3rd level (10d4): burning hands = 3d4 x max 5 OR
(4d6) scorching ray = 4d6 x max 1 creature
5th level (176d6): fireball = 5d6 x max 36 creatures
...
8th level (288d6): fireball = 8d6 x max 36 creatures
19th level (1728d6) : meteor swarm = 6d6 x 4 * 72 (guessing how many squares a 40 ft radius is).
Interesting matchup. Problem that is created is that if a barrier adept can do this every round, then they are better than the 3.5 warlock in that they can do xd6 damage per round to multiple creatures. Add a cooldown timer, or a max count of these per day for balance, or make it a dart like in the other thread to target only one creature at a time.
Other thoughts:
- Don't describe the effect's size in creatures, but number of squares instead. i.e. At fourth level, the adept can create a 2x2 square or a 4x1 wall...
- Drop cube and sphere from the list of shapes, because to even use it, an adept must be at least 8th level to make a 2x2x2, 27th to make a 3x3x3... Inside refer to the two dimentional square or X foot radius
- Add a cooldown timer to the usage of the effects. i.e. if a field is created, and broken, then the number of HP used are returned to the pool in X rounds (probably 3, with a feat to reduce it to 2). Field intentionally collapsed (either destructively [see above] or not) can be added back to the pool in X rounds (probably 1, with the same feat above dropping it to immediately)
I say drop the concept of the hardness of the bubble being like certain surfaces. Even a very low HP'd bubble with hardness of 20 will take forever for a fighter to blow through without an adamantium weapon, or completly negate a ranger with a bow or a rogue (not enough damage output on either). The comment about adding INT mod to the hardness would be sufficient to distinguish different skill levels of equal level adepts. Instead of these Harness boosts at the different levels, use those levels to give the personal force powers or spell like abilities (mage armor, shield, etc).
Yes, drop the armor/weapon training. Add the powers of these effects as their primary offence/defense.