Agreed with @saurianDruid and @Maximuus it all comes down to what you call cheese. After getting killed the first time I cast Wish: F8 and then power word: metagame
I climbed on the roof used a brine pod and firebolt to both burn the ogres and toss them about. I let the fire spread using grease (which is explicitly against the PHB description) and had a good time dodging boulders and taking advantage of that sweet game breaking home brew height advantage / disadvantage. Wyll's eldritch blasts always hit and the boulders always missed. I could have made it ridiculous with oil barrels.
For me it's cheese because of easy access to advantage and the easy access to game breaking items. Fun, but absolutely cheese.
And then I decided to see if I could win on ground level and that also worked. So yes, I didn't need to use cheese but I think cheese baked into the game. Hmmm. Baked cheese sound really good right now
