Hearthstone - Tavern Brawl (BY THE POWER OF RAGNAROS)
"FIGHT FOR THE AMUSEMENT OF THE EMPEROR! All cards in your hand have their costs reduced by one at the end of your turn."
There's not much different in this game mode outside of a normal game of Hearthstone. The only change is that everyone has their card costs reduced by one at the end of their turn, an effect that mimics Emperor Thaurissan's effect.
https://hearthstone.gamepedia.com/BY_THE_POWER_OF_RAGNAROS
Each week, a different Tavern Brawl will pit you head to head versus another player using