Warlock Grim Patron + Defile = Board Clear + 4 to 6 Patrons

Just laying out some play modeling that might be useful in the future.

Previous posts have indicated that if Defile is used with Grim Patron + minion primers, there will be a set amount of Grim Patrons that come in.

Source: https://www.reddit.com/r/hearthstone/comments/6q8d2w/a_blizzard_dev_confirmed_that_grim_patron_has_a/

With a primer of either 1 HP + 2HP minions to start the chain or something like Possessed Villager, the reaction would go something like this (assume 3/* minions are GPs)

1. 3/3 1/1 2/2 Cast Defile
2. 3/2 2/1 3/3 Cast Defile
3. 3/1 3/2 3/3 3/3 Cast Defile
4. 3/1 3/2 3/2 3/3 3/3 3/3 Cast Defile
5. 3/1 3/1 3/2 3/2 3/2 3/3 Cast Defile
6. 3/1 3/1 3/1 3/2 3/3 Cast Defile
7. 3/1 3/2 3/3 3/3 Cast Defile

Note that Cycle 3 and Cycle 7 are the same so things should repeat from here on out and depending on how many patrons/cycles Bliz will program in, you will end up with a layout from Cycle 3 - 6 with 4 - 6 patrons in various states of injury against a clear board.