Black Clover Season 1 Episode 156 Awakening Powers ( Air Date 2020-12-15 ) Genre Action & Adventure, Animation, Comedy category. Overview "While Asta and the others were training in the Heart Kingdom, back in the Clover Kingdom, Yami asked Mereoleona to help him train. They start their training immediately and Yami is no match against Mereoleona who is a master at using Mana Zone. Meanwhile, the Spade Kingdom’s forces continues to draw nearer as it continues its invasion.".