Carnival of Souls [Urza's Destiny] SWSH161 the player puts it into

the player puts it into their graveyard

It has "Sacrifice this creature: Add {C}

you can send this card to the Graveyard to inflict 1000 damage to your opponent for each of your Standby Phases that have passed since this card was activated

the effects of Flip monsters destroyed by battle with this card are negated

Set: Kaladesh Inventions Type: Legendary Artifact Rarity: Mythic Cost: {6} {8}

Carnival of Souls [Urza's Destiny] SWSH161 the player puts it intoSet: Urza's Destiny Type: Enchantment Rarity: Rare Cost: {1}{B} Whenever a creature enters the battlefield, you lose 1 life and add {B}. "'Davvol, blast those elves.' 'Davvol, transport those troops.' No one cares that today is my birthday."