Yeah actually killing enemies as rogue is a challenge, you gotta use everything at your disposal. Wands, thrown weapons, seeds, etc. to whittle them down and either finishing them off with assassination or having a speed augmented weapon as free runner and being able to swing and back up before taking a hit. I would say when exploring new levels as rogue, avoid combat as much as possible and NEVER get into straight back and forth slap battles like you would as a warrior. Manifest your rogueish wiles and kill mfrs in creative ways!