You are going to Watch Shakugan no Shana Season 2 Episode 21 English dubbed online free episodes with HQ / high quality. Stream Anime Shakugan no Shana II Episode 21 Online English dub Merging Powers. Wilhelmina struggles against Sabrac who appears to be invincible. Yuji gathers Shana, Margery, Kazumi and Keisaku, and devises a plan to defeat Sabrac. They are successful in severing his energy reserves while Wilhelmina distracts him, and without Power of Existence to draw on, Sabrac loses two more swords and finally falls to Nietono no Shana.