Common
Cost: 3g
Destruction
Stock +3
If enemy lowered your stock last turn, enemy stock -2x enemy facilities.
This should be a Rare for all that it does. A common card that gives a free 3b 0g 3r, and it has the Destruction keyword so it can be chained for the Destruction effect. Without even factoring in the two turns' worth of production that can be knocked off of the opponent, this card is so cheaply useful that it would be in every deck.
If you want it to be a stock reduction counter, have it remove one turn's worth of production and nothing more.