Terraforming Mars: Self-Replicating Robots is an action card that can make other cards cheaper to play over time.
Requires 2 Science tags
(Action:Reveal and place a SPACE OR BUILDING card here from hand, and place 2 resources on it, OR double the resources on a card here
Effect: Cards may be played as if from hand with the cost (reduced by the number of resources on it)
For more information, visit the BGG listing.