Yu-Gi-Oh! Arc-V: Echoes Of The Abyss

In the Synchro Dimension, where Duelists live and breathe through their D-Wheels and Synchro Summoning, a rumor spreads through the streets of New Domino City.
A shadow rides the night-an unknown Duelist who challenges opponents under the moonlight. They say his cards come alive, his monsters strike for real, and every duel he wins ends the same way: he takes his opponent's strongest DARK or Fiend monster as his own.

No one knows his name, only the title whispered in fear and fascination alike-
The Highlander.

A masked Duelist who can shut down Synchro Summoning itself... and whose power echoes from the very depths of the abyss.