Ive listed two as the minimum required, but I personally always play three whenever I sleeve the deck up

Aang, Destined Savior Admonition Angel Angel of Serenity Anzrag's Rampage Apple of Eden, Isu Relic Ashiok's Erasure Asmodeus the Archfiend Aurelia's Vindicator Aurora Phoenix Avatar Kyoshi, Earthbender Ba Sing Se Badgermole Badgermole Cub Bag of Devouring Bag of Holding Bane Alley Broker Beifong's Bounty Hunters Bitter Work Bottled Cloister Bumi's Feast Lecture Bumi, Eclectic Earthbender Bumi, King of Three Trials Champion of the Clachan Champion of the Path Champion of the Weird Champions of the Perfect Champions of the Shoal Coin of Fate Cold Storage Colfenor's Urn Cosima, God of the Voyage Cracked Earth Technique Dai Li Agents Dai Li Indoctrination Darigaaz Reincarnated Day of the Dragons Deny Reality Detention Sphere Disorder in the Court Earth Kingdom General Earth Rumble Earth Village Ruffians Earthbending Lesson Earthbending Student Earthen Ally Endless Sands Ethereal Forager Etherium-Horn Sorcerer Faceless Butcher Faceless Devourer Fatal Fissure Fiend Hunter Flickerform Gravegouger Gustha's Scepter Haru, Hidden Talent Helvault Hide on the Ceiling Hofri Ghostforge Holistic Wisdom Hypnox Icy Prison Identity Thief Induced Amnesia Ingenuity Engine Journey to Nowhere Leonin Relic-Warder Livio, Oathsworn Sentinel Mechtitan Core Mesmeric Fiend Mimic Vat Mirror of Life Trapping

He however considered casting two colored spells in 60 card standard decks
Quickly recapping the story, last week saw local Illumineers (the in-lore term used to refer to players of the Trading Card Game) participate in a regional tournament held by Ravensburger
Hopefully you now feel well equipped to deal with MDFC
Considering that curling really affects what you can sell cards for and that cards that are too curled can get you disqualified from competitive games this is great news