{I apologize for my lack of activity these past two days, getting used to work!
Thanks for the diagram of the battle Shadami, it's quite helpful}

Jolmah quietly walks up to a small group of goblins who are facing the caravan and have their backs towards her.
She raises her morningstar and with all her might strikes one of the goblins in front of her.
{Ok lets hope I did this correctly}
Attack roll: The 20-sided dice lands on 5 +2 (base attack bonus) + 2 (flanking) +3 (strength modifier)
Damage roll, if it hits: The 8-sided dice lands on 8 (if critical hit then x2)