Combat Superiority hole?

[Legildur]

We were playing on Saturday and found what we think is a disappointing hole in the Fighter's Combat Superiority ability, which I just want to confirm. (forgive my terminology if I get it wrong as i don't have books in front of me and stupid no easy-access online rules don't help the cause).

The dwarf Fighter was holding a 10ft wide corridor as best he could against some duegar. He had one marked and as the dwarf went to shift sideways into a tactically better position (I think to prevent a second rank character being left open to a potential flank), the duegar activated some immediate interrupt ability to shift into that square instead.

"Ah ha!" we all cried, the Fighter's Combat Superiority allows him to make a basic melee attack as an immediate interrupt against a marked opponent who tries to shift, and a successful attack stops them dead.

Then we found out that you can't make Opportunity Attacks on your turn... so there was no way to block the duegar's opportunity shift! I don't like this "feature".

 

[On Puget Sound]

The fighter's immediate interrupt attack is not an Opportunity Attack. The main difference is that the Combat Challenge attack is an immediate interrupt (max 1 per round) while the OA is an opportunity action (max 1 per opponent turn). But you are correct, neither the CC nor the OA can be done on the fighter's own turn, so monsters that are shifty enough to move out of turn can slip by you. This allows a way to simulate monsters that are evasive or sneaky enough to duck under your guard and is intended, I believe.

 

[Stalker0]

Regardless, the fighter's attack couldn't have stopped the shift anyway, the ability doesn't work that way.

For normal OA's the fighter has the ability to stop moving.

For shifting, the fighter simply gains the special ability to make an attack against something that shifts, but it doesn't stop movement.

 

[Legildur]

Thanks for the clarification!!