Faceless Haven This may be no Mutavault in terms of power, but its not a terrible replacement for it either

3 Braska's Final Aeon Cecil, Dark Knight Cecil, Redeemed Paladin Chaos, the Endless Choco, Seeker of Paradise Cid, Timeless Artificer Clive, Ifrit's Dominant Cloud of Darkness Cloud, Midgar Mercenary Cloud, Planet's Champion Crystallized Serah Diamond Weapon Dion, Bahamut's Dominant Edgar, King of Figaro Emet-Selch, Unsundered Esper Terra Excalibur II Exdeath, Void Warlock Fang, Fearless l'Cie Firion, Wild Rose Warrior Freya Crescent G'raha Tia Gaius van Baelsar Galian Beast Garland, Knight of Cornelia Garnet, Princess of Alexandria Gilgamesh, Master-at-Arms Giott, King of the Dwarves Gladiolus Amicitia Gogo, Master of Mimicry Golbez, Crystal Collector Hades, Sorcerer of Eld Hope Estheim Hydaelyn, the Mothercrystal Ifrit, Warden of Inferno Ignis Scientia Jecht, Reluctant Guardian Jenova, Ancient Calamity Jill, Shiva's Dominant Joshua, Phoenix's Dominant Judge Magister Gabranth Kain, Traitorous Dragoon Kefka, Court Mage Kefka, Ruler of Ruin Kuja, Genome Sorcerer Lightning, Army of One Lightning, Security Sergeant Locke Cole Lunatic Pandora Matoya, Archon Elder Minwu, White Mage Neo Exdeath, Dimension's End Noctis, Prince of Lucis Omega, Heartless Evolution Phoenix, Warden of Fire Prompto Argentum Queen Brahne Quina, Qu Gourmet

Either yours, your creatures, or both
You can only Special Summon King of the Ashened City once per turn this way
This must be one formidable Mouse
Its a good conversation piece, its fun and its an alternative investment people really enjoy. A number of bidders were interested in the Gretzky O-Pee-Chee the card previously sold for $465,000 in 2016 which the auction house expected would snag at least $1 million