Marit Lage's Slumber [Modern Horizons] Instant "Your enemies will pound upon

"Your enemies will pound upon the door of your defenses

Set: Iconic Masters Type: Snow Creature — Specter Rarity: Uncommon Cost: {2}{U}{B} Flying

if it was a Flip Effect Monster

Set: Eventide Type: Creature — Dwarf Soldier Rarity: Uncommon Cost: {2}{R/W} {1}{R/W}

Marit Lage's Slumber [Modern Horizons] Instant "Your enemies will pound uponSet: Modern Horizons Type: Legendary Snow Enchantment Rarity: Rare Cost: {1}{U} Whenever Marit Lage's Slumber or another snow permanent enters the battlefield under your control, scry 1. At the beginning of your upkeep, if you control ten or more snow permanents, sacrifice Marit Lage's Slumber. If you do, create Marit Lage, a legendary 20 20 black Avatar creature token with flying and indestructible.