In our game yesterday we came upon a discussion point concerning acrobatics and attacks of opportunity
This is the relevant ruletext
In addition, you can move through a threatened square without provoking an attack of opportunity from an enemy by using Acrobatics. When moving in this way, you move at half speed. You can move at full speed by increasing the DC of the check by 10. You cannot use Acrobatics to move past foes if your speed is reduced due to carrying a medium or heavy load or wearing medium or heavy armor. If an ability allows you to move at full speed under such conditions, you can use Acrobatics to move past foes. You can use Acrobatics in this way while prone, but doing so requires a full-round action to move 5 feet, and the DC is increased by 5. If you attempt to move though an enemy's space and fail the check, you lose the move action and provoke an attack of opportunity.
Situation
Base Acrobatics DC*
Move through a threatened area
Opponent's Combat Maneuver Defense
Move through an enemy's space
5 + opponent's Combat Maneuver Defense
* This DC is used to avoid an attack of opportunity due to movement. This DC increases by 2 for each additional opponent avoided in 1 round.
it was the last sentence that caused some confusion.
if you are in a position where you would provoke attack's of opportunity from three different enemies, and you use acrobatics to move without provoking the attacks. do you make three different rolles (one for each enemy), The dc on the first one being the first enemy's cmd, the dc for the second roll being the second enemy's cmd + 2 and the third roll the dc being the third enemy's cmd + 4 or is it just one roll against the highest cmd + 4 (+2 for every enemy after the first one)
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It's *three* checks with possible variable DCs (CMD for one foe, plus +4 for two additional enemies), but you have to carefully define "Threatened area." If all three foes threaten the square the person is moving through and would provoke AoO from, then 3 checks CMD +4.
It's like this. The first square I leave which would provoke AO is threatened by one foe, so a CMD check to avoid from THAT foe. Then, I move to another square (remember always half speed) and leave that square, and that square is threatened by two creatures, so the second check to avoid AoO from the second foe is a CMD +2, and then final square I'm tumbling through is threatened by three creatures, so a final check to avoid an AoO from the third creature CMD +4.
Alternatively, if I start in a square threatened by all three it's 3 separate CMD +4 checks, the player decides which check is against which possible foe's AoO BEFORE the roll.
Got it?
From the OFFICIAL FAQ:
Acrobatics: How does Acrobatics (Core Rulebook, page 87) work when you use it to avoid attacks of opportunity? When do you make checks? How many do you make?
Acrobatics allows you to make checks to move through the threatened area of foes without provoking attacks of opportunity. You must make a check the moment you attempt to leave a square threatened by an enemy, but only once per foe. The DC (which is based of the Combat Maneuver Defense of each foe), increases by +2 for each foe after the first in one round. The DC also increases by +5 if you attempt to move through a foe. In the case of moving out of the threatened square of two foes at the same time, the moving character decides which check to make first.
For example, a rogue is flanked by a meek goblin and a terrifying antipaladin. The rogue move away from both of them, provoking an attack of opportunity from both, but uses Acrobatics to attempt to negate them. She must move at half speed while threatened by these foes and can choose which to check against first. If she fails a check, she provokes an attack of opportunity from that foe. If she makes it, she does not provoke from moving through that foe's threatened space this turn.
—Jason Bulmahn, 11/24/10 Back to Top
Acrobatics: What happens if I fail the check when using this skill to move through an enemy's square?
You lose the move action and provoke an AOO. (Note: This means you can attempt this up to two times in the same round, once as a move action and once as a standard action.)
Update: Page 88—In the Acrobatics skill, at the end of the third paragraph (which begins on page 87), add the following sentence: “If you attempt to move through an enemy’s space and fail the check, you lose the move action and provoke an attack of opportunity.”
—Sean K Reynolds, 08/30/11
thank you
Our group also did this last night with an enemy using Acrobatics to move away from a square threatened by 2 mounted PCs, (though only 1 mount threatened - the other was not fighting/threatening).
Rough Sq-----Rough Sq-----Rough Sq
Mtd Rngr------Evil Fey->>>-Clear Sq
Clear Sq------Mtd Pal--------Clear Sq
We were tired so only rolled one Acobatics check, a 27 with a 2 showing on the die!
We should have made 3 checks, each at +4.
For moving out of that 1st square.
vs the Ranger's CMD+4= 20
vs the Paladin's CMD+4= 22
vs the Paladin's Mount+4= 22
All had taken 5-6 points in Dex damage from poison.
Nasty little fey assassin got away into the bushes, which got fireballed too late.
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Correct, unless she has something that allows her to use acrobatics during a charge.
Actually I was misremembering a conversation about the Duelist Prestige Class.
I don't think there is any rule that specifically disallows tumbling while charging, just as long as you do so in a straight line as per charging rules for movement.