Yu☆Gi☆Oh! Duel Monsters

Synopsis

Under the influence of the Orichalcos, Yami Yugi ruthlessly attacks Rafael, using Catapult Turtle to sacrifice his monsters in order to drain Rafael's life points. However, when Rafael summons his ace monster, Guardian Eatos, he gains the upper hand; he has unlocked Yami Yugi's inner darkness, which caused him to duel recklessly, and he manages to turn the Pharaoh's own monsters against him, using Guardian Eatos's effects. This causes Guardian Eatos to gain attack points equal to the total attack points of all the monsters in Yami Yugi's Graveyard, allowing Eatos to power up to 10,000 attack points. When Eatos attacks, Yami Yugi loses the duel and almost has his soul taken, but Yugi uses the Millenium Puzzle to destroy his prison and steps in to save Yami Yugi. This causes Yugi's soul to be taken instead, devastating the Pharaoh. Meanwhile, Rex and Weevil jump onto Rafael's helicopter to join up with Dartz's team, in order to obtain the power of the Orichalcos.

(Source: Wikipedia)