Curse of the Snowgod

At the beginning of each player's upkeep. They
tap a non-planeswalker permanent. That
permanent remains tapped until Curse of The
Snowgod leaves the battlefield.
At the beginning of each endstep. If a player has
only tapped non-planeswalker permanents.
Sacrifice Curse of the Snowgod, then that player
loses the game.
Her love calms every feeling of burning hatred.