GraviTrax POWER: Interaction Extension Playing Cards or will her mother be

or will her mother be changed forever

Written by d616 System co-creator and New York Times-bestseller Matt Forbeck (The Marvel Encyclopedia

Each of these five scenarios offers a unique challenge

and four edge-stitched neoprene character mats

GraviTrax POWER: Interaction Extension Playing Cards or will her mother bePack an extra punch into your next dynamic marble run with the game changing, radio signaling GraviTrax POWER Extension Interaction set! Ready to automate your marble track fun? Check out the GraviTrax POWER Extension Interaction Set! Packed with 8 accessories that link via radio signals you determine if the POWER Trigger signals the POWER Starter, Switch or Lever. Or, use the POWER Controller to be in charge! Watch your marbles get a lift up 7 levels