in your average casual Commander game, I can easily see this pumping out 20 power worth of Beasts per turn cycle
The worlds premier trading card game convention features three full days of Magic: The Gathering, Flesh and Blood, Disney Lorcana, and Star Wars Unlimited action: Magic: The Gathering Modern $10Ks on Friday and Saturday
Sadly Edicts have become far weaker in the cube since the arrival of planeswalkers, and in general to the creature power creep
Therefore, if "Mew ex" ( Mythical Island ) uses "Genome Hacking" to copy such an attack, it can do so without discarding any Energy, as long as none of its attached Energy matches the type specified by the copied attack

Ad Nauseum Aetherflux Reservoir Ancestral Recall Ancestral Statue Back to Basics Balance Baral, Chief of Compliance Biorhythm Black Lotus Braids, Cabal Minion Channel Coalition Victory Cut // Ribbons Dakmor Salvage Deadeye Navigator Debt to the Deathless Edgar Markov Ember Shot Emrakul, the Aeons Torn Erayo, Soratami Ascendant Exsanguinate Fall of the Titans Fastbond Felidar Sovereign Flash Food Chain Fraying Omnipotence Grip of Chaos Griselbrand Hermit Druid Humility Jaya's Immolating Inferno Karakas Leovold, Emissary of Trest Limited Resources Lion's Eye Diamond Mana Crypt Mana Vault Mind Twist Moat Mox Emerald Mox Jet Mox Pearl Mox Ruby Mox Sapphire Natural Order Necropotence Necrotic Ooze Oath of Druids Painter's Servant Panoptic Mirror Possibility Storm Prophet of Kruphix Protean Hulk Recurring Nightmare Rofellos, Llanowar Emissary Serra Ascendant Stasis Static Orb Strip Mine Sundering Titan Sway of the Stars Sylvan Library Sylvan Primordial Tangle Wire Test of Endurance The Chain Veil The Tabernacle at Pendrell Vale Time Vault Time Walk Tinker Tolarian Academy Tooth and Nail Torment of Hailfire Trade Secrets Treachery Triskelion Upheaval Winter Orb Worldfire Yawgmoth's Bargain Zur the Enchanter

All this thinking about creativity led me to come up with my own theory on what creativity is