Monster Rating=80. (9 dice plus 40 adds.) Special combat rules: you may try to dodge him. Make a 1st level saving roll on your Dexterity (20-DEX). Each time you successfully make your saving roll, he misses you and you get to roll your combat dice and get that many hits on him. If you miss your saving roll once, he smashes you flat. Any time you feel that you have reduced his monster rating to a number low enough to fight, you may switch to regular combat.
If this is not an "exit monster" instead of fighting you may try to run away.
Treasure=1-5.