In episode 131, Yami Yugi uses this card during his Duel against Seto Kaiba. When "Slifer the Sky Dragon" (who had 6000 ATK due to its own effect) attacks "Obelisk the Tormentor", Kaiba activates "Power Balance" to make Yugi discard half of the cards in his hand. As he had six cards, he had to discard three. Kaiba then uses the second effect of "Power Balance" to draw the same amount of cards that Yugi discarded. This decreases the ATK of "Slifer" to 3000, but Yugi activates this card to summon "Blade Knight", "Sword of Soul", "Kaiser Sea Horse", and "X-Head Cannon" from the Graveyard. This activates the effect of "Slifer", destroying the newly summoned monsters. "Obelisk" then lost 600 ATK for every "Necromancy"-revived monster that Yugi destroyed. With four destroyed, "Obelisk" lost 2400 ATK. Kaiba then activates the effect of "Sword of Soul" to increase the ATK of "Obelisk" by 1000, but Yugi activates the effect of "Electromagnetic Turtle" to end the Battle Phase immediately.