The Roaming Wolfpack has been hit by the Plaza of punishment, bringing it to 4 STR.
RW attacks, and gains its While Attacking RW gains +2 STR, bringing it to 6 STR.
The RW gets hit by Astapor for -4, bringing it to 2 STR.
The challenge ends. What happens?
The way I've read, the effect on RW is a lasting effect which remains in effect "until the end" of the challenge.
Astapor lasts until the end of the challenge.
Can these expire simultaneously, or does one have to expire first?