Whatever kinds of games you favor, you’re probably aware of Age of Sigmar, Games Workshop’s flagship fantasy battle game, thanks to its stores' up and down global high streets. You may be less aware of its kissing cousin, Spearhead which uses a stripped-down version of the rules and fixed army lists to allow faster, more furious fights that are also more newbie-friendly. It’s proved extremely popular.Now there’s a new starter set for the format, Spearhead: City of Ash, with pretty…