Is there anyone online now who would be willing to help me defeat this guy?! I have tried and tried with traps and everything but they beat me every time!!
use a balance triple trap on him to stop his cheat AND to get the boost you need from your school (unless you're balance in which case you wont get damage boost). That fight IS tough yes, but totally doable as one person. Also, if you're posting for help, i real time, this forums isnt the best place because there is usually a delay in getting the posts up. if you're planning a future run of something, it's better for that.
One of the best ways to defeat Chester is using the school he's weak against; .
Unfortunately since he uses death shields almost 100% of the time, try getting the "Scarecrow" treasure card (if you don't have a death wizard) to effect all enemies. Also, just using general highly ranked spells should do the trick, especially if they effect all opponents.
I hope this helps anyone else who has the opportunity to defeat him.
When you're facing multiple opponents, get rid of the henchmen first. Then focus on the main guy (Chester in this case). Using Infection on him helps if you're Death to stop him from healing so much, and if you have a spell that can steal his wards, that helps too. Once the henchmen are gone, you can focus on Chester without much of a problem.