Black Vise [Kaladesh Inventions] Merfolk Warrior change Halfdane's base power and

change Halfdane's base power and toughness to the power and toughness of target creature other than Halfdane until the end of your next upkeep

there is an additional combat phase

She wished for a weapon

its controller gains that much life

target player loses 2 life and you gain 2 life

Black Vise [Kaladesh Inventions] Merfolk Warrior change Halfdane's base power andSet: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {1} As Black Vise enters the battlefield, choose an opponent. At the beginning of the chosen player's upkeep, Black Vise deals X damage to that player, where X is the number of cards in their hand minus 4.