Threefold Thunderhulk [The Lost Caverns of Ixalan] The Library that source's controller mills that

that source's controller mills that many cards

where X is the amount of damage those creatures dealt to that player

land of many fountains

you may pay {1}{R} and exile it with four time counters on it

Set: March of the Machine Prerelease Promos Type: Instant Rarity: Rare Cost: {5}{U} Convoke (Your creatures can help cast this spell

Threefold Thunderhulk [The Lost Caverns of Ixalan] The Library that source's controller mills thatSet: The Lost Caverns of Ixalan Type: Artifact Creature Gnome Rarity: Rare Cost: {7} Threefold Thunderhulk enters the battlefield with three +1 +1 counters on it. Whenever Threefold Thunderhulk enters the battlefield or attacks, create a number of 1 1 colorless Gnome artifact creature tokens equal to its power. 2, Sacrifice another artifact: Put a +1 +1 counter on Threefold Thunderhulk.