First Appearance: Sentinels of the Multiverse: Rook City
Where it is: A chemical plant on the seedy side of Rook City—think Axis Chemical from 1992’s Batman.
Primary Damage Type: Toxic
Secondary Damage Type: Cold, Energy, and Melee
Deck Concept: Increase damage with some cards, reduce damage done to environment targets with others, and plenty of global effects that harm the heroes and the villains. Who wants to be their own night light?

 

 

 
Biggest Global Effect: Chemical Explosion: Destroy all vat cards. Deal all targets X toxic damage, where X = the number of cards destroyed by this card plus 3. At the end of the environment turn, destroy this card.
Worst Card (for the Heroes): Supercooled Trisolvent Vat: Whenever a player plays a hero card, deal their hero 1 cold damage. At the end of the environment turn, deal each target 1 cold damage, 1 toxic damage, and 1 energy damage.

Oddest Way to Win (Achievement Time): Escaped Lab Rat (3 HP): At the end of the environment turn, this card deals the 2 non-environment targets with the lowest HP 1 melee damage each.
Bonus Odd Way to Win: Supercooled Trisolvent Vat: Whenever a player plays a hero card, deal their hero 1 cold damage. At the end of the environment turn, deal each target 1 cold damage, 1 toxic damage, and 1 energy damage.
Bonus, Bonus Odd Way to Win: Chemical Explosion: Destroy all vat cards. Deal all targets X toxic damage, where X = the number of cards destroyed by this card plus 3. At the end of the environment turn, destroy this card.
How to Escape: Shielding helps. Healing helps, too. You don’t want the Escaped Lab Rats to gang up on you, so take them out quickly. And watch out for Experimental Mutagen. The bad thing is that rats reenter the battlefield, and they’re buffed. The good thing is that you know what you’ll be doing the next turn.