House of Cards"The castaways will use water to fill up a bucket with holes in it attached to a platform. When the bucket has enough water, they will cross a balance beam to build a house of cards to reach the target height. If the bucket runs out of water, the platform will tip over, dumping the cards. The first person to stack cards up to the target height wins." ~
@SurvivorWiki David wins immunity.
Proceed.