Reach weapon and attack of opportunity

[sempai33]

I wish to know one thing.
If a PC has a reach weapon like a glaive, and if a foe (at a distance of 30 feet) moves in the threatened square with his sword to attack the PC, does it provoke an attack of opportunity for the PC cause of his glaive and its reach ?
It's the same question for the "Elephant" in the garden of the Arkonas in "Escape from old Korvosa" and a lot of over foes in this part?

[DMFTodd]

The first threatened square they move into - 10' away from the elephant - does NOT cause the AoO. Leaving that threatened square - moving the next 5' to get next to the elephant - DOES cause the AoO.

[sempai33]

DMFTodd wrote:

The first threatened square they move into - 10' away from the elephant - does NOT cause the AoO. Leaving that threatened square - moving the next 5' to get next to the elephant - DOES cause the AoO.

Thanks, so that's the same with a foe armed with a Glaive. If you move INTO the 10' reach doesn't cause an AoO, just if you move away! That's right?

[Ulak]

sempai33 wrote:

DMFTodd wrote:

The first threatened square they move into - 10' away from the elephant - does NOT cause the AoO. Leaving that threatened square - moving the next 5' to get next to the elephant - DOES cause the AoO.

Thanks, so that's the same with a foe armed with a Glaive. If you move INTO the 10' reach doesn't cause an AoO, just if you move away! That's right?

As long as you realize "move into" doesn't mean "move forward".

If you enter a threatened square that does not provoke an AoO.

If you leave a threatened square without using the full retreat option you provoke an AoO.

It doesn't matter which direction you are going when you leave a threatened square.

Full retreat lets you leave the 1st threatened square you wish to leave without provoking an AoO.

So in the example above with a Normal Sized PC with a Glaive:
Enter the 1st threatened square 10' away, no provoking of AoO.

Exiting that threatened square and you do provoke an AoO.

In the case of the Elephant if it is being controlled and the controller did not want to provoke from reach weapons there is no reason to keep moving. The Elephant itself has 10' reach and can deliver its slams, stamps, and gores from 10' away.

However if you wanted to trample the Glaive-wielder, you'd provoke as soon as you moved the next square towards them.