Hmm... The last game I played was DDO, I was on my wizard though... So either my weapon is a crapload of spells or a Greater Corrosion III Eternal Wand of Acid Splash.
So depending on their Hit Die and movement speed we may or may not be screwed... It really depends if I can kite them while hitting them with 1d4+5 damage per shot of my wand (Which recharges over time) though Blur + Expeditious Retreat would make it slightly easier for me.