So yesterday we had a wilander with runningshot. Before attacking he moved his two spaces, and when he entered the secound space, bang, pit trap.

What the, how does this work? The wildlander is not allowed to move if he dont make the attack, so when he failed the trap he was not allowed to move. How do you guys play this situation?

We decided he made the attack and was then stunned.

Are you sure that he can't move without attacking? I believe it has been ruled that the Knight can "Advance" whether or not he has the intention to attack.

The wildlander is not allowed to move if he dont make the attack, so when he failed the trap he was not allowed to move.

I'm not sure where you're getting this info. But here's how the situation plays out:

He declared an attack, so that's happening regardless.

He then decides to take the 2 movement points before resolving the attack.

He moves one space.

He moves another space, finds a pit trap, fails his check.

He suffers 1 heart, has no movement points (unless he interrupted a previous movement action which wasn't mentioned), so is Stunned.

His attack action has already been declared, so that still gets to happen and is resolved as normal.

His next declared action must be spent removing the Stunned token.

Griton is correct. Once the action has been declared it happens. The stun will just be there for next action. The same situation can happen for charge or oath of honor.

Thanks