First Appearance: Sentinels of the Multiverse: Promo
Where it is: The unforgiving wastes of the Multiverse
Primary Damage Type: Melee
Secondary Damage Type: Fire and Toxic
Deck Concept: A wild environment with a lot of targets that deal global damage. There are a couple of cards that can help hero’s, but they come at the price of playing the top card of the environment deck which isn’t that bad of a deal.

 
Biggest Global Effect: Unforgiving Wasteland: Whenever a target would be destroyed by damage dealt by an environment card, remove that target from the game instead.
Worst Card (for the Heroes): Amphibious Chupacabra (6HP): At the end of the environment turn, this card deals the non-environment target with the lowest HP (H)—where H = to the number of heroes—minus 1 melee damage. The, if that target has 5 or more HP, this card deals that target 1 toxic damage.

Oddest Ways to Win (Achievement Time): There are a lot of weird ways for heroes to win in this environment so let’s save space and list them here.
New Jersey Devil (6 HP): At the end of the environment turn, this card deals the 2 non-environment targets with the lowest HP (H) minus 1 fire damage each.
Amphibious Chupacabra (6HP): At the end of the environment turn, this card deals the non-environment target with the lowest HP (H)—where H = to the number of heroes—minus 1 melee damage. The, if that target has 5 or more HP, this card deals that target 1 toxic damage.
Abominable Snowman (9 HP): This card is immune to cold damage. At the start of the environment turn, this card deals the non-environment target with the second lowest HP 2 cold damage and 2 melee damage.
Mongolian Death Worm (8 HP): At the start of the environment turn, this card deals the 2 targets other than itself with the highest HP 3 melee damage and 3 toxic damage. Then, shuffle this card into the environment deck
Rat Beast (7 HP): At the end of the environment turn, this card deals the non-environment target with the second highest HP (H) minus 1 melee damage.
Horrid Skunk Ape (5 HP): At the end of the environment turn, this card deals each target other than itself 1 melee damage.

How to Escape: You’ll have to figure out whether the reward of using Con’s Bunker and Ancient Library outweighs the cost of playing an additional environment card per turn. You can heal all your heroes with Con’s Bunker, and you get draw power with Ancient Library. Unforgiving Wasteland teamed up with other cards that destroy equipment and ongoing cards can be a bear, so try to get it out of play as quick as you can. But for all the environment targets this deck has, most of them dole out global damage. That means that most of these environment targets are just as bad for villains as they are for heroes. So long as you have healing and/or damage reduction, you should do fine.