Due to its high casting cost, I believe 1 or 2 is the correct number for Nightmare
A canny Steelsong player can be singing by turn 3, wiping their opponents' slate clean while racking up lore at an obscene pace via Sleepy's Flute
Trainer (Rockets Secret Machine) Common Uncommon: 32/82: Dark Charmeleon Fire Uncommon 33/82: Dark Dragonair Colorless Uncommon 34/82: Dark Electrode Lightning Uncommon 35/82: Dark Flareon Fire Uncommon 36/82: Dark Gloom Grass Uncommon 37/82: Dark Golduck Water Uncommon 38/82: Dark Jolteon Lightning Uncommon 39/82: Dark Kadabra Psychic Uncommon 40/82: Dark Machoke Fighting Uncommon 41/82: Dark Muk Grass Uncommon 42/82: Dark Persian Colorless Uncommon 43/82: Dark Primeape Fighting Uncommon 44/82: Dark Rapidash Fire Uncommon 45/82: Dark Vaporeon Water Uncommon 46/82: Dark Wartortle Water Uncommon 47/82: Magikarp Water Uncommon 48/82: Porygon Colorless Uncommon 73/82: The Bosss Way Trainer Uncommon 74/82: Challenge
Fury The second signpost card of the deck, Griefs red and angry partner in crime
Scrambleverse is an eight mana Sorcery spell that untaps all permanents
Even if you took some damage to your opponent's Burn cards, or after they attacked you with a creature, with Vilis on the board, all this damage will become card draw, which is a great advantage