Red Avenger from Sword and Fist

[deadkitten]

So here is the Prestige class. Bear in Mind that it is 3.0 material and that I am not fully aware of the differences between it and 3.5.
Red Avenger

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(Sword and Fist: A Guidebook to Monks and Fighters variant, p. 34)
The Red Avenger is the master of ki,an ancient and formidable discipline that allows the user to accomplish the extraordinary.
Requirements
Base Attack Bonus: +5
Skills: Listen 8 ranks , Tumble 8 ranks
Feats: Improved Unarmed Strike , Stunning Fist

Hit die
d8
Skill points
4 + Int
Class Features
Weapon and Armor Proficiency: The Red Avenger is proficient with all simple weapons, light armor, medium armor, and shields. (Note: Armor heavier than leather carries a penalty on the Red Avenger skills Hide and Move Silently.)

Ki: At 1st level, the Red Avenger gains a greater understanding of the supernatural ability to control and utilize ki. Ki is an energy source created by and flowing through all living creatures. Much of the Red Avenger's training is devoted to understanding and learning to focus ki, and the effects she can produce at each level reflect the increasing complexity of their education.

Stunning Shout: The Red Avenger releases her ki energy in a sonic attack. You can blast ki energy in a cone 30 feet long. The attack stuns all targets in the cone for one round unless they make a successful Fortitude save (DC 15 + Red Avenger's Wisdom modifier). The attack is a standard action, and requires the Red Avenger to be able to vocalize in order to use the ability.

Ki Save: At 2nd level, the Red Avenger gains the ability to channel her ki into protecting herself from adverse effects. She gains a bonus equal to her Wisdom bonus on any one saving throw of her choice. You must declare that you are using this ability before you make the saving throw. You can use this once per day per Avenger level.

Ki Skill: At 3rd level, the Red Avenger gains a bonus to any skill check when using any Red Avenger class skill, equal to her Wisdom bonus. You must declare that you are using this power before you make the skill check. You can use this once per day per Avenger level.

Ki Healing: At 4th level, the Red Avenger gains the ability to channel ki into healing energy. When she lays her hands on a living creature other than herself, she conducts the ki in such a way that it heals a number of hit points equal to her class level multiplied by her Wisdom bonus. She may choose to divide her ki healing energy among multiple recipients, and she need not use it all at once. Ki healing is a supernatural ability whose use is a standard action. You can use this once per day per Avenger level.

Deadly Shout: The Red Avenger releases her ki energy in a sonic attack. You can blast ki energy in a cone 30 feet long. The attack deals 3d6 + your Wisdom modifier in damage to all within the cone. A successful Fortitude save (DC 15 + the Avenger's Wisdom bonus) halves the damage. The attack is a standard action, and requires the Red Avenger to be able to vocalize in order to use the ability.

Free Ki: The Red Avenger has mastered the use of ki energy and channels it with ease. Whenever using any class ability that is imbued with ki, you may add double your Wisdom bonus.

Multiclass Note: Monk characters can freely multiclass with this class. In other words, you can give your monk PC a Red Avenger level, then return to the monk class for your next level, take a Red Avenger level after that, and so on.

I am mostly curious about the Free Ki ability  Does this ability allow the Red Avenger to add double their Wisdom to each of their class features. For instance, would stunning shout have a DC of 15 + Wisdom modifier x2?
And how does it interact with Monk class features such as Ki strike, or any other class that uses Ki?
I think it is safe to assume that the intent was to be only Red Avenger Class features, but Free Ki does state any class ability.

[Stratovarius]

I would rule yes on the doubled DC, and no on it affecting other classes, but I can see how the RAW argument could go there. I tend to treat a prestige class saying "class ability" as only affecting class abilities for that prestige class, unless specifically intended otherwise.

[Jackinthegreen]

It says "any class ability that is imbued with ki..."  Yes, it's safest to only say it's meant for Red Avenger abilities since the context leans on that incredibly heavily, but the wording is such that it could be abused for other purposes (especially monk and CAd ninja).

As far as its actual interactions go, since it says "you may add double your Wisdom bonus" I'd be inclined to say it'd work on stuff that did indeed originally add it such as the save DC for Stunning Shout or the damage and save DC for Deadly shout.  However, since the Ki Healing ability is a multiple of the Wisdom mod, it's not strictly affected since it's not an addition.

Come to look at other stuff, perhaps that Ki Healing ability is the precursor to the Karmic Healing feat for CAd ninjas.