This special pack introduced in Version 1.29.07 added the Robot card, along with an incredibly large number of new combos. When purchased, the player receives 3 random Machine Cards from the card pool below. The Robot card is not guaranteed, even though it is the most valuable. As with recent packs, there are limited numbers of cards in the pack, and each purchase increases the chance of getting the desired card.
The Machine Pack is unlocked from April 24, 2015 to May 3, 2015.