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Mobspawner |
I am GM in a game in which one player has been allowed to play a Saurian Ninja.
http://www.d20pfsrd.com/races/3rd-party-races/saurian
http://www.d20pfsrd.com/extras/playtests/paizo---ultimate-combat/ninja
In total I think the Ninja class is too frontloaded, but overall balanced.
The Ki system means that he is over-powered in one-two encounters per day, but otherwise still great, as he will just have to spend more time to get in position for the perfect sneak attack. Ki seems to be an ability a character should not get already at 2nd level.
With vanishing trick and featherfall - he is pretty much impossible to kill.
The Ninja trick: Forgotten Trick is extremely boring. It means that the player doesn't have to make any real choices of tricks later in the game.
Unrelated: The Saurian class is a little overpowered bacause of the +2 Natural Armor. But is still seems a decent way to make a saurian, as he is pretty much defined by his scales.