I can't wait for you guys to try this game out, it is a puzzler.
Each blue outlaw card has a bonus that makes it more or less suited to solving each encounter. Right here, we've got a lady whose power is to remove trees. By removing the tree on the left, we'll not only enter stealth-mode (reducing the standard difficulty of each enemy) but remove the buff the tree is providing to the blue squid enemy, reducing him further to only 1 strength.
That 1 strength means one of your six Russian-roulette cards need to be drawn, rather than three.