Class ability that makes customized poisons.

[Bob G]

I’m building a custom ability for an assassin base class called Toxins. When selected, the class gains the ability to create customized poisons. Each poison begins with a base profile that sets the values required for poisons. These base values are as follows:
Type poison (injury); Save Fortitude;
DC 10 + 1/2 assassin level + assassin’s INT bonus;
Onset immediate
Frequency 1/round for 1 round;
Effect see Table: Custom Poison Effects by Level;
Cure 1 save
Special Poisons automatically deals poison damage equal to the poison's DC – 10, divided by 2. For example, a poison with a DC of 20 would deal 5 points of poison damage. This damage is applied regardless of the results of the target’s saving throw.
Table: Custom Poison Effects by Level
Assassin level Target Attribute Ability Damage
1-2; Str, Dex, Int; 1d4
3-6; Str, Dex, Con, Int ; 1d6
7-10; All; 1d8
11-14; All; 1d10
15-18; All; 1d12
19+; All; 2d6

At 1st level, the assassin may apply 1 poison technique to her poisons. At 4th level and every four levels thereafter, the assassin may apply an additional technique to her poison, to a maximum of 6 techniques at 20th level. For example, a 4th level assassin may apply 2 techniques to her poison, and a 12th level assassin may apply 4 techniques to her poison. A poison, once created, remains potent for 1 day before losing its potency, so an assassin must prepare her poisonsevery day.

As the assassin gains levels, they gain techniques that can alter the base profile of the poison. Type of poison, save DC, onset time, duration of poison, frequency, and number of toxins that can be created per day are all examples of techniques that the assassin can choose to modify the base profile of the poison.

I created a custom special called Poisons that sets the base profile of the poison. What I need to figure out now is how to apply abilities that modify the base profile. Each technique that could be applied is tagged with an abCategory tag for filtering purposes.

I’m looking for some direction on how to best create the user interface that creates the customized poison. I think that a Configurable is probably the best way to go, but I lack enough experience with Configurables to know if it will be able to do what I want the ability to do. Can anyone provide some guidance for me?