2 Ugin's Labyrinth An Early Chalice of the Void Enabler & More If Urza's Cave is an obviously potent card for trying out in Tron strategies, then Ugin's Labyrinth is a must-include
You'd have to tap these lands plus one or two other lands just to make colored mana
The owner can recast it, but it's temporarily out of play, which can be a significant tempo setback for your opponent
When you put the "extra level" removal spell in your deck beyond the tier one options (Lightning Bolt, Path to Exile, Fatal Push) you are looking for some major upside, either in card advantage like Kolaghan's Command, or in versatility like Assassin's Trophy
Like most Magic: The Gathering cards, the value of Villainous Wealth depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Khans of Tarkir)
Her first ability Now I am the Ruler! forces an opposing character to become exerted whenever Ursula quests successfully