Mulligans
The aim is to play light for the first three turns, keeping hand size up and tapping for Smuggler’s Run with Stonehill Defender/Loot Hoarder, then swing tempo turn 4/5 with Call to Arms and Gravelsnout Knight/Dirty Rat + Mind Control Tech and follow it up with tempo after tempo until they lose, clearing the board each turn. The reason this works is that a lot of decks post-K&C struggle to keep pressure on with only 2 minions, and MCT punishes high-tempo plays in a high-tempo meta.
Keep MCT + Rat or Mole in the mulligan against tempo/midrange, keep Smuggler’s against control, always keep Call to Arms.