Mistwell said:
It's in the glossary as it's own definition without mentioning AOOs:
Notice, no mention of Attacks of Opportunity.
There is no actual rule that says you do not threaten a square if you cannot make an attack of opportunity into it.
But there is a rule that says you do not threaten a square if you cannot make a melee attack into it.
It says you typically threaten a square even when it is not your turn. Certainly - typically, you can make a melee attack into it, even when it is not your turn, if someone provokes an AoO. But if you have no AoOs available, and it is not your turn, there's no way to make a melee attack into that square. Is that, perhaps, the atypical situation to which they refer?
If we rule that a character who cannot make an AoO threatens a square when it is not his turn, does he still threaten a square when he is Dazed or (assuming IUS, natural weapons, etc) Stunned?
On W's turn, does he get a flanking bonus from Z if he attacks Y with his spiked chain?
W certainly gets a flanking bonus from Z if he attacks Y with his spiked chain. There is no requirement for W to threaten Y in order to gain the flanking bonus.
The relevant question, however, is "Does Z get a flanking bonus from W if he attacks Y?"
The answer is "If W threatens Y". If W does not threaten Y, Z gets no flanking bonus. If W threatens Y, Z gets a flanking bonus.
Goldmoon said:
Would this also work with a whip or whip dagger?
No. The whip explicitly does not threaten.
-Hyp.