Urborg, Tomb of Yawgmoth [Planar Chaos] Hour of Devastation nonland card revealed this way

nonland card revealed this way and cast it without paying its mana cost

Set: Antiquities Type: Artifact Creature — Golem Rarity: Rare Cost: {9} Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking

Set: Ice Age Type: Sorcery Rarity: Uncommon Cost: {1}{G}{G} Destroy target land

Set: Arabian Nights Type: Sorcery Rarity: Rare Cost: {W}{W} Players play a Magic subgame

Urborg, Tomb of Yawgmoth [Planar Chaos] Hour of Devastation nonland card revealed this waySet: Planar Chaos 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