ARMOURED ZOMBIES mate
Everybody is saying Bandits, so here is an explanation of them:
They are in the Bandit Camp and are constantly aggressive if you have a piece of Saradomin or Zamorak armor on. Using a god book is fine, but most pures also use a Sara/Zammy Mitre with monk's robes, since it gives the best head slot prayer bonus anyway. Use the Bandit Camp Teleport (buyable in GE) to teleport there and run to the bar to the west. Flip on Protect from Melee and find a good spot where 3-4 will swarm at you. Most worlds can only hold two people, but if you hop around enough you'll find an open spot (German, French, and Portuguese worlds tend to have a free spot). The hopping becomes worth it because the exp is very fast and it's 99% AFKable. Using Prayer Renewals and Prayer Potions, just drop in every 5 minutes to pot back up. Don't forget the super attacks and super strengths.
http://runescape.wikia.com/wiki/Bandit_(Kharid_Bandit_Camp
Thanks for that post Kero, you put some effort into it, So are you suggesting an invent including varrock tele/ 5 super str/super atk/ 7 rocktails/ 10 pray pots?

