Maylene darted for the edge of the stinking cloud, "Clunk, get your rusty ass and your crossbow over here!"
The Helmed Horror ran over to her, crossbow in hand.
"Now, gimme your sword and shoot the blasted things!"
As it reached her, Maylene laid her hands on the sword and it began to glow with the spell she laid on it.
Clunk pulled up the crossbow, aimed, and let off a shot - the bolt crackling with electricity as it left the crossbow.
"There, your sword is ready, go chop 'em up." Maylene handed the newly enchanted sword back to Clunk, sighing in exasperation as the crossbow bolt went flying wide. Maybe she would have to change the type of construct at some point. Something able to hit the broad side of a Tarrasque.
Spoiler: Game mechanics
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Maylene and Clunk move actions to reach each other (and for Maylene to exit the nasty cloud).
Clunk standard action shoot one of the beings. (Description, please!)
Attack: (1d20+11)[15] Crit on 19-20: (1d20+11)[20]
Damage: (1d10)[7] plus electricity (1d6)[6]
If Crit: (1d10)[1] plus electricity (1d10)[10]
Maylene standard action cast Greater Magic Weapon (+3) on Clunk's sword.
Hands it back to him.