Seer is one of the two skins released in the “Welcome to the Island...!“ part of the Island offer. It could be purchased as part of an item deal for a limited time in September 2016.
Seer could be purchased for $19.99 in a deal that included 50000 coins. It could also be purchased for $49.99 in the “Best Deal!” which included the Scar skin and 125000 coins. This skin was not available for individual purchase and may not be available for purchase in the future.
Details of this skin may vary depending on location, platform or time.
Note: The “Welcome to the Island...!“ sub-offer was released again for a limited time in early April 2019. This time the deal that included 50000 coins was lowered to 16000 coins at $4.99. The Best Deal was lowered to $9.99 and the included coins were reduced to 30000.