The bison is one of North-Americas iconic animals that could easily handle wolfs. The bison horns would be unlocked by attacking 50 times and spending 30 days in a grassland biome. The effects would be of course +1 strength. Next the bison body would be unlocked by attacking 30 times and spending 50 days in a grassland biome. The effects would be +2 cold resistance, +1 heat resistance, +1 strength and +1 speed. Now yes the hooves are a pretty common request but there can be variations. Finally t