Range, hally, or mage him from behind the fence. Do not pray, instead bring sharks and eat every two hits. If you pray he will teleport to the side of the fence you are on, so it's just easier to keep him on one side.
You get them as a reward from obtaining the fourth floor reward in the security stronghold. EDIT: The reward comes from the "Cradle of Life". You search it to obtain the boots.
Catablepons are located on the 3rd floor of the sercurity stronghold. The security stronghold is located in the center of Barbarian village; climb down the ladder to enter it.
I prefer Runescape addiction over my past SOCOM addiction. I gave the game a nickname of SOCRACK. I quit Runescape 3 years ago cold turkey. Trust me you will come back after about a year or so. Anyway, good luck in real life.
Get an inventory full of dueling rings and teleport to the castle wars arena over and over until someone asks me what I'm doing. You get some rather odd reactions.
Staking, less risk , or at least in my case. Plus, I hate pkers trying to kill me when im training agility or runecrfating. Most annoying thing in the world.