AoO on Difficult Terrain

[Man O'Taur]

Hello. Finished a session with my barbarian a few minutes ago and I had a question I was hoping someone could clear up. My barbarian was fighting some kinda flesh monster and there was the Monster above me with 5ft reach and me below him with a pile of dirt in between us that was difficult terrain. I moved onto the pile of dirt and made an attack. My GM said that moving into a threatened square with difficult terrain provoked an attack. I've only seen people use opportunity attacks on A people who move out of a threatened square that's not a five foot step and B miscellaneous actions like range attack, picking up an item, etc. My question is whether or not it does provoke an attack. I looked through the rules and didn't see anything definitive. Does that double move cost into the space count as something that provokes?

[LazarX]

You can't do a 5 foot adjustment on difficult terrain. Your GM was right.

[Rathendar]

What he said above.

In short, difficult terrain costs double movement to use, and take 10' of movement to go 5'. This means it can't be a 5' step/no AoO because it takes 10' to enter the square.

[Maezer]

The description given makes it seem likely that you left a threaten square via regular movement and that is what provoked. If the monster could not attack your starting position (or any position you left during your movement) then it would not provoke.

[Majuba]

What Maezer said. You are correct that *entering* a threatened square does not provoke, regardless of the action required, but if it threatened the square you were in originally then it would provoke as you left a threatened square (and did not get the benefits of a 5-ft step due to the difficult terrain).

[Real Man O'Taur]

Majuba wrote:

What Maezer said. You are correct that *entering* a threatened square does not provoke, regardless of the action required, but if it threatened the square you were in originally then it would provoke as you left a threatened square (and did not get the benefits of a 5-ft step due to the difficult terrain).

He did not leave a threatened square he entered on difficult terrain

[Drake Brimstone]

If I'm understanding what you are saying correctly:

You did not move out of or through a threatened square, just into one correct?

If this is the case then no, you would not have provoked an AoO.

If the monster was threatening the square you started in and you moved, not being able to take a 5' Step into the Difficult Terrain, you would provoke.

Just to be clear, you said 5' Reach, did you mean 10' Reach? Most Small or Medium Creatures have a 5' Reach, Large creatures tend to have a 10' Reach. 5' Reach means you can reach into an adjacent square, a 10' reach means you can reach one square further, leaving a 1 square gap between you. If you were 10' away (a 5' square between you and it) and you moved to next to it and it had a 10' Reach it would get an AoO.

The above assumes non-diagonal movement, but you can't avoid an AoO by moving diagonally to go from a 15' non-threatened square to an adjacent square as you pass through the 10' range during the movement even if it isn't a valid square.

[Real Man O'Taur]

it was a zombie it was reach 5'

[Man O'Taur]

Drake Brimstone wrote:

If I'm understanding what you are saying correctly:

You did not move out of or through a threatened square, just into one correct?

If this is the case then no, you would not have provoked an AoO.

If the monster was threatening the square you started in and you moved, not being able to take a 5' Step into the Difficult Terrain, you would provoke.

Just to be clear, you said 5' Reach, did you mean 10' Reach? Most Small or Medium Creatures have a 5' Reach, Large creatures tend to have a 10' Reach. 5' Reach means you can reach into an adjacent square, a 10' reach means you can reach one square further, leaving a 1 square gap between you. If you were 10' away (a 5' square between you and it) and you moved to next to it and it had a 10' Reach it would get an AoO.

The above assumes non-diagonal movement, but you can't avoid an AoO by moving diagonally to go from a 15' non-threatened square to an adjacent square as you pass through the 10' range during the movement even if it isn't a valid square.

I was not threatened before the movement and I was just noting that it had the standard 5ft reach (ie only adjacent squares)

[kinevon]

Then, unless there are other effects in play, it wouldn't get an AoO just because you moved into difficult terrain within its threatened area.

However, without knowing more, there is a possibility that it had a feat or ability that gave it a special condition, that your PC triggered, when your PC moved adjacent to it.

For example: Starting a grapple when you have the Improved Grapple feat does not provoke an AoO. However, there is a feat or class ability that gives someone an AoO even if the grapple/grab attack normally wouldn't provoke.