Game Mechanics: Melee Range almost impossible to hit people running

[Yinikren]

I spent 35 minutes running around the entirety of butcherblock trying to kill a naked wood elf on my 8 rogue. I could not hit her reliably until she decided to go for three seperate swims (100% -67%, 100% to 55%, and 82% to dead - she regened to full twice). I could not touch her on land because the melee range is tiny and the ghosting while strafing.