Ok so instead... last turn you played a bunch of Inventors and then Procession on Cobbler a bunch; failing to gain a replacement because nothing cost
, and used Bonfires to trash all of your cards.
So at the start of your turn, you can gain a bunch Inventors to your hand and other engine pieces to your hand. You have villager tokens lying around also so you don't need to spend gains on Villages.
Using Inventors to gain Knights, Processions, and Torturers, you are able to trash all 10 of your opponents cards.
You then buy some Bonfires to get back down to 10 cards exactly.