[size=75][color=red]I'm confused by True Lineages's Gladiatrix Certamen school. It says: "Those fighting in the style of the Gladiatrix can create the visual effect of the battle on the chess board, and can summon phntasmal boards, but cannot read their opponent's opinions. Isn't this just a fancy way of saying "There is no reason to fight in this style unless you are a member of the school?" " [/size]
There's no reason to fight in the Gladatrix style except the pure aesthetic of doing so, which is pleasant, indeed almost sexual, for many Tremere. Certamen is a social thing.
[color=red]It also indicates that "any magus trained in the School of the Sword can fight in the style of the gladiatrix without further training."
Does this mean as a follower of the Gladiatrix school or as a dabbler (= worthless)?
As a non-dedicated pwerson, yes. I feel sorry for you that only combat effectiveness is worthwhile in your games.
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Other questions on this section:
Why would the Order feel Certamen is rigged if they thought the Gladiator style allowed a magus to use Vis to better effect? All the other styles give an optional advantage, leaving Gladiator as the least likely to be used. What would you suppose the bonus would be, if it existed? Burning Vis is a pretty expensive way to win a Certamen. (I'm guessing +4 to Attack or Defense or +2 to each).
The concept of Certamen is that a form of dueling is incorporated as an alternative ot powerful magi attempting to harm each other. If certamen is rigged, so that it gives comparatively weak Tremere magi advantages because of their secret techniques, then it means the Hermetic legal system no longer works properly. As to it being "the least likely to be used" on the contrary: the gladiator sytle is the most likely to be used.
[color=red]IF Saggitarius had a dedicated follower, what would their ability be? (Perhaps 3x Finesse as a bonus to Attack and only 2x Finesse as a penality?)
Whatever you like: in the vanilla setting they don't exist. The Saggita form is designed to mock the concept of certamen. Dedicatedly studying it misses its point.
[color=red]When a Bjornaer uses the Bestiarus style as a dabbler, do they add their Heartbeast score to their Reisitance only during Muto Corpus or Muto Animal duels, making it a useless dabbling form under any other circumstances?
It's not useless: iot means they don't need a Finesse score, pretty much ever, which is useful for many Bjornaers who empahsise shapeshifting and thus do not have a Finesse score for pretty much anything else. It's also useful for duels within the house.
[color=red]I like the Styles, these just had me a little bamboozled.
The basic problem you habve is not seeing that certamen has a social context. It's not always about just hitting the other guy until he falls over. Medeival duelling wasn't like that, and modern sport isn't, among groups of peer-practioners.