Cancer is a Zodiac skin that was included as part of the monthly release of the Star Pack offer. The Star Pack with the Cancer skin was available for purchase in the middle of June 2017.
The Star Pack is released under the Zodiac Monthly Deal and costs $4.99. It included the Cancer skin and a package of either 7000 coins (Browser) or 800 DNA (Mobile). This skin was not available for individual purchase and may not be available for purchase in the future.
Details of this offer may vary depending on location and platform.