Yu-Gi-Oh 5D’s Episode 142 English Subbed Episode Title:A Life-or-Death Battle! Machine Divine Emperor Dragon Asterisk.Episode Description:As Jack, Leo, and Luna struggle to survive, Aporia summons his key monster, Machine Divine Emperor Dragon Asterisk, which will inflict 1,000 points of damage to anyone who tries to Synchro Summon. Lamenting that he hasn't been able to protect anyone, Leo risks some of his own life points to protect Jack and Luna and weaken Asterisk. Leo then summons Power Tool Dragon and Ancient Fairy Dragon for Jack and Luna, and gets hit by the 4,800 points of effect damage, bringing his life points down to zero, causing him to die. The shock of Leo's death causes Luna to have a heart attack and puts her in a critical state, with her life points gradually dropping on their own, due to her weakening pulse. However, Leo comes back to life with 100 life points, thanks to Ancient Fairy Dragon and his Morphtronic Lighton's effect, and becomes the sixth and final Signer, now bearing the Mark of the Crimson Dragon's Heart. Noticing that Luna's life is in danger, with her life points now down to 18, Leo calls upon the Crimson Dragon's power and Synchro Summons Power Tool Dragon's true form, Life Stream Dragon, the sixth Signer Dragon.