I spammed this for a bit on Christmas eve on a new alt and went 10-0 and Delibird managed to even take some KOs and help out a bit. Mega Mence is the goat of this format and helps fill holes in the team due to its excellent role compression. Heatran helps out with the Flutter matchup. My own Flutter gives my 2 specs mons that have essentially perfect coverage and sash Delibird isn't that bad at getting Tailwind up since it requires a double target to kill. Kingambit is a soft Trick Room check and provides some priority.