@chucke1992
They could also be smart.
The tournament is set up so that one side sends a fighter, and the other decides who they will send to counter that fighter.
For the first two rounds, the Purgatory side got to counter the Kengan side.
Now here's the thing: if you have a fighter who has a trick, and the other side can consult your fighter's data in advance and decide which fighter best counters that trick, then that fighter essentially becomes useless. To put it simply, when you send out a fighter first, you don't want him to be a fighter that relies on a trick, you want him to be generally strong and not have any weaknesses that could be exploited. On the other hand, when countering an opponent's fighter, you may very well want to use your tricksters so that they can be used in situations where they're not countered.
In the first round for instance, Purgatory's fighter was confident he could take on Gaolang because he had considerable boxing experience and when you consider the weight class, he clearly punched above his weight class.
With all that said, we kinda saw the Purgatory fighters self selecting who went out so it doesn't seem like there is that much thought going into countering the opponent's fighter from their side. (I mean, the purgatory fang wanted to take on Gaolang and got stopped, so clearly there's no defined plan on their side.)
I'm sure that we'll see some Purgatory fighters who are much less reliant on tricks and showmanship. Also, these trickster fighter have still managed to get to the top of Purgatory, so it's not like their tricks are so easy to beat, even when they're known.