Games tagged Contraband is the only extra buy card. Also a very fun game with the mountebank in place of the contraband and the chapel intsead of the moat.

About Dominion Deck Builder

Dominion Deck Builder allows you to create, share, discuss and rate Dominion games.

Crooked Politics v2

Baron, Bureaucrat, Chapel, Conspirator, Council Room, Great Hall, Secret Chamber, Shanty Town, Spy, Tribute
The Mob Rules

Black Market, Count, Counterfeit, Forge, Fortress, Moat, Nobles, Procession, Rabble, Vagrant
If you listen to fools, the Mob Rules

Altar, Black Market, Count, Forge, Fortress, Moat, Nobles, Procession, Rabble, Vagrant