Every season is an important season for your herd. Black Magic All Season works year-round to provide deer with vital nutrients to maximize their genetic potential. We developed this granular mix based on scientific research to include a full spectrum of minerals, including calcium, phosphorus and magnesium. This positively impacts overall herd health, antler growth, digestion processes and much more. The time-release formula lasts up to six months, so there's little effort required and big results that keep delivering.