Under the Merciless Sun
The Sands of Harad#69 (x1)
2A-B (14)
When Revealed: Increase the temperature by 2. Shuffle the encounter discard pile into the encounter deck and reveal 1 encounter card per player.

You trudge across the barren desert with the blazing sun overhead and deadly creatures underfoot, but nothing is more dangerous to you than your lack of water.
Forced: At the end of the round, increase the temperature by 4. Then, each player assigns X damage among characters he controls, where X is the tens digit of the temperature.

If the temperature is 60 or higher, the players lose the game.

If you cannot make it across the desert soon, you are certain to die of thrist...