Coveted Jewel [March of the Machine Commander] BT7-064 "If the gas is present

"If the gas is present

Set: Duel Decks Anthology Type: Legendary Creature — Demon Spirit Rarity: Rare Cost: {6}{B}{B}{B} At the beginning of your upkeep

Then each opponent who didn't sacrifice a creature discards two cards

if at least seven mana was spent to cast it

Coveted Jewel [March of the Machine Commander] BT7-064 "If the gas is presentSet: March of the Machine Commander Type: Artifact Rarity: Rare Cost: {6} When Coveted Jewel enters the battlefield, draw three cards. {T}: Add three mana of any one color. Whenever one or more creatures an opponent controls attack you and aren't blocked, that player draws three cards and gains control of Coveted Jewel. Untap it.