Every town receives three wildcards at the beginneng of each game, which can be uses in tactical or emergency situations. There is no option to buy new wildcards or to trade them with other players, so spent them wisely. There is a small chance you receive a extra wildcard with random events, but this chance is really small.
Jackpot - Gives your town a immediate cash bonus of 1000 x your townlevel.
Low rations - Gives your town a immediate food bonus of 1000 x your townlevel.
Wood stash - Gives your town a immediate wood bonus of 1000 x your townlevel.
Rush hour - All trading and attack convoys will arrive immediatly at their destination.
Hot meals - Instantly refills your operations energy.
Dogs of war - Instantly refills your army readiness.