Spike Flower is one of the three skins released in the Troldir's Mystic Shop offer. It could be purchased as part of an item deal in late March 2018.
Spike Flower could be purchased for $4.99 in a limited time deal that included 3250 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.