Windswept Heath [Onslaught] Token Artifact Creature Nightmare's power and toughness are

Nightmare's power and toughness are each equal to the number of Swamps you control

it was not small drops

Just consider the possibilities available to the practitioner of magic

Set: Commander 2015 Type: Creature — Vedalken Wizard Rarity: Rare Cost: {1}{U}{U} {U}

Set: Revised Edition Type: Creature — Nightmare Horse Rarity: Rare Cost: {5}{B} Flying (This creature can't be blocked except by creatures with flying or reach

Windswept Heath [Onslaught] Token Artifact Creature Nightmare's power and toughness areSet: Onslaught Type: Land Rarity: Rare {T}, Pay 1 life, Sacrifice Windswept Heath: Search your library for a Forest or Plains card, put it onto the battlefield, then shuffle.