First, let's check out the original list: Coven Counters | Commander | Wizards of the Coast Commander (1) 1 Leinore, Autumn Sovereign Creatures (38) 1 Abzan Falconer 1 Ainok Bond-Kin 1 Angel of Glory's Rise 1 Avacyn's Pilgrim 1 Bastion Protector 1 Champion of Lambholt 1 Custodi Soulbinders 1 Dawnhart Wardens 1 Dearly Departed 1 Elite Scaleguard 1 Enduring Scalelord 1 Eternal Witness 1 Gyre Sage 1 Herald of War 1 Heronblade Elite 1 Heron's Grace Champion 1 Juniper Order Ranger 1 Kessig Cagebreakers 1 Knight of the White Orchid 1 Kurbis, Harvest Celebrant 1 Kyler, Sigardian Emissary 1 Mikaeus, the Lunarch 1 Moorland Rescuer 1 Odric, Master Tactician 1 Orzhov Advokist 1 Riders of Gavony 1 Sigarda, Heron's Grace 1 Sigarda's Vanguard 1 Sigardian Zealot 1 Somberwald Beastmaster 1 Somberwald Sage 1 Stalwart Pathlighter 1 Trostani's Summoner 1 Verdurous Gearhulk 1 Victory's Envoy 1 Wall of Mourning 1 Wild Beastmaster 1 Yavimaya Elder Instants (6) 1 Beast Within 1 Inspiring Call 1 Return to Dust 1 Ruinous Intrusion 1 Swords to Plowshares 1 Unbreakable Formation Sorceries (8) 1 Bestial Menace 1 Biogenic Upgrade 1 Celebrate the Harvest 1 Celestial Judgment 1 Cleansing Nova 1 Growth Spasm 1 Hour of Reckoning 1 Shamanic Revelation Enchantments (4) 1 Citadel Siege 1 Curse of Clinging Webs 1 Curse of Conformity 1 Death's Presence Artifacts (6) 1 Arcane Signet 1 Lifecrafter's Bestiary 1 Moonsilver Key 1 Sol Ring 1 Swiftfoot Boots 1 Talisman of Unty Right out of the gate, I'll admit I'm kind of baffled by this list

Six mana may be a lot, but artifact decks often have ways to create a lot of it pretty easily
We print the ultra-modern Mtg proxy playing cards
But for our purposes today, the important thing is that many of Innistrads humans and other beings are affected by the moon and transform at night
Its worth noting that extra combat effects arent the only way to take an extra combat