However, assuming that you're building a fairly typical deck, there is a really simple way of figuring out about how many lands you should put in your deck
The speed boost to mill opponents is likely to help opponents that want cards in their graveyard unless you're turbo charging your other options to churn through opposing libraries alongside this
Regardless, Mewtwo EX defined the TCG's meta when it was top of the pile, and has become something of the poster boy for the best Pokmon cards
Aatchik, Emerald Radian Abomination of Llanowar Agent Frank Horrigan Akawalli, the Seething Tower Amzu, Swarm's Hunger Atlas, Sizable Stooge Baba Lysaga, Night Witch Bebop & Rocksteady Belbe, Corrupted Observer Beledros Witherbloom Blech, Loafing Pest Bortuk Bonerattle Brako, Heartless Hunter Camellia, the Seedmiser Carth the Lion Chevill, Bane of Monsters Cleopatra, Exiled Pharaoh Cloud of Darkness Dina, Essence Brewer Dina, Soul Steeper Exdeath, Void Warlock Glissa Sunslayer Glissa, Herald of Predation Glissa, the Traitor Gorma, the Gullet Grakmaw, Skyclave Ravager Greta, Sweettooth Scourge Grismold, the Dreadsower Gyome, Master Chef Hapatra, Vizier of Poisons Harald, King of Skemfar Hazel of the Rootbloom High Perfect Morcant Hogaak, Arisen Necropolis Honest Rutstein Ikra Shidiqi, the Usurper Iname as One Izoni, Center of the Web Izoni, Thousand-Eyed Jarad, Golgari Lich Lord Jenova, Ancient Calamity Kagha, Shadow Archdruid Killmonger, Scourge of Wakanda Kraven the Hunter Lathril, Blade of the Elves Lluwen, Exchange Student Lluwen, Imperfect Naturalist Long Feng, Grand Secretariat Mazirek, Kraul Death Priest Meren of Clan Nel Toth Michonne, Ruthless Survivor Nath of the Gilt-Leaf Nemata, Primeval Warden Neo Exdeath, Dimension's End Old Man Willow Old Rutstein Old Stickfingers Pharika, God of Affliction Pippin, Warden of Isengard Pizza Face, Gastromancer Polukranos, Unchained Ragnarok, Divine Deliverance Rendmaw, Creaking Nest Reyhan, Last of the Abzan Sapling of Colfenor Sarulf, Realm Eater Savra, Queen of the Golgari Shelob, Child of Ungoliant Shessra, Death's Whisper Sisters of Stone Death Skullbriar, the Walking Grave Slimefoot, the Stowaway
If you ever find yourself at a loss against huge creature or token army decks, this land is an immediate response that has your opponents making difficult decisions each turn
Nascent Metamorph becomes a copy of that creature until end of turn
