Feel free to read this at your own leisure if you start wondering what the heck is going on with my character. ;)
I like being transparent on my characters and this is one of the weirder ones, so I like for the GM to understand what my character's doing when he's doing it. I'm not sure how familiar you are with Vigilantes, but in case you're not, I have the scoop for ya from this character.
So, the main few things you need to know are this:
Acrobatics
This character is a rock star at Acrobatics (will make sense why later). He has +27 normally (+8 Ranks, +3 Class Skill, +6 Dex, +3 Skill Focus, +2 Acrobatic feat, +5 Corsair Armor Enchantment (competence bonus)).
He has some conditional modifiers on top of this:
Crowd Dodger Trait - +2 trait bonus to Acrobatics to move through creature's space.
Masterwork Tool - Bought a masterwork tool (+2 circumstance bonus) specifically for tumbling through a square. It doesn't apply to any other kind of Acrobatics roll.
Underfoot Dodge Alternate Halfling Racial Trait - +5 untyped bonus to Acrobatics when tumbling through an enemy larger than him (so medium or larger).
The bottom line of all that is that he is +31 to tumble through an opponent's square and +36 when that foe is medium size or larger. Keep in mind that it is +5 to CMD when tumbling through a square. It is also +10 to the DC when moving at full speed. I typically apply the +10 myself (as a -10 modifier to my Acrobatics) for when I'm moving at full speed and let the GM handle the +5 to CMD. That way the GM only has to worry about the monster and not my movement speed.
Hidden Strike
This is an ability that is a lot like sneak attack. Basically, it's d8 "sneak attack" when an opponent is caught unaware (from stealth or being invisible) and d4 "sneak attack" when it's other things, like flank or them being flatfooted.
Stalker Vigilante Talents
These are the reason I have such a high Acrobatics. I have two key ones that tie into it.
Up Close and Personal - The bread and butter of it all. Allows him to make an attack as a swift action when he tumbles through a square. In fact, he gets an attack whether or not he succeeded at the tumble. He gets his Hidden Strike damage on this attack automatically, with the d8 version for a successful attempt to tumble and the d4 version for a failed attempt to tumble. Oftentimes, you will see him move through an opponent's square, attack with his swift action, and then still have a standard action left (usually to attack again).
Leave an Opening - This is a pretty weird vigilante talent. It allows him to attack an opponent at the beginning of the opponent's turn if the vigilante hit that opponent with Hidden Strike during his previous round using an attack of opportunity (and yes he has Combat Reflexes). The opponent also has to be next to the vigilante at the start of its turn as well. That's pretty much all there is to it, but it is worthy of note that this means that The Tumbler will often attack 3 times. First time from tumbling through, second time with his standard action, and third time at the beginning of the opponent's turn. It's also common for him to double move, one move to get closer to the opponent, one slower tumble move to move through the opponent, and a swift action to attack. That's just because the swift action attack is better than his standard action attack. ;)
Elven Stuff
He has a boon from a convention that gives him Elven Weapon Familiarity for the cost of -1 to all attack rolls with other weapons. As a result, for the most part he uses Elven weapons. I also ran with it and he is adopted by Elves (with a trait) and speaks Elven, has an Elven name, and his backstory reflects all that. ;)
Oh yes, and his default identity is his Vigilante Identity. So yes, he is masked up when people meet him.
