Urborg, Tomb of Yawgmoth [Magic 2015] Arms if Nether Shadow is in

if Nether Shadow is in your graveyard with at least three creature cards above it

Threshold — Nim Mongoose gets +1/+0 for each artifact you control as long as seven or more cards are in your graveyard

Set: Sun & Moon: Hidden Fates - Shiny Vault Type: Psychic Rarity: Secret Rare Retreat cost: Colorless

Set: Summer Magic / Edgar Type: Creature — Wall Rarity: Uncommon Cost: {1}{R}{R} Defender (This creature can't attack

The scrape of shovels and the tumble of cold dirt soon muffled their pleas

Urborg, Tomb of Yawgmoth [Magic 2015] Arms if Nether Shadow is inSet: Magic 2015 Type: Legendary Land Rarity: Rare Each land is a Swamp in addition to its other land types. "Yawgmoth's corpse is a wound in the universe. His foul blood seeps out, infecting the land with his final curse." Lord Windgrace