"Twisting out of the way of the incoming arrow causes a slight muscle pull."
"The orc looses its arrow. At the last moment, Elspeth notices the incoming projectile and twists to evade, but too late to avoid it entirely. The arrow punches through her armour, grazing Elspeth, but not doing serious harm."
Who handles the narration? DM? Player? Both?
Does narration extend to spells, feats and skills (were applicable)? If not, why?