Card Appearances:D/D/D Oblivion King Abyss Ragnarok

In episode 51, Declan plays this card in his duel against Yuya Sakaki. He Pendulum Summons this card using "D/D Magical Astronomer Kepler" and "D/D Magical Astronomer Galilei". Since this card was Special Summoned, Declan activates its effect, Special Summoning "D/D/D Wave Overlord Caesar". Later Declan uses this cards effect to tribute "D/D Necro Slime" and banish "Rune-Eyes Pendulum Dragon". Declan uses this card and "Caesar" to "Fusion Summon" "D/D/D Caesar Ragnarok the Wave Complete Oblivion Overlord" via the effect of "Necro Slime". Since this card was sent from the field to the Graveyard, Declan activates this cards effect, adding "Re-contract Covenant" from his Deck to his hand. Declan later Pendulum Summons this card, along with "D/D/D Hell Armageddon the Cruel End Overlord". He overlays this card and "Cruel End Overlord" to Xyz Summon "D/D/D Kali Yuga the Twin Dawn Overlord".