Meekstone [Kaladesh Inventions] March of the Machine if you chose a creature

if you chose a creature other than Gandalf

Set: Innistrad: Midnight Hunt Promos Type: Legendary Enchantment Rarity: Mythic Cost: {X}{B}{B} When The Meathook Massacre enters the battlefield

That description is still mostly accurate

Set: World Championship Decks 1998 Type: Legendary Land Rarity: Rare {T}: Add {C}

Meekstone [Kaladesh Inventions] March of the Machine if you chose a creatureSet: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {1} Creatures with power 3 or greater don't untap during their controllers' untap steps. "When it oscillated above a particular frequency, the stone induced acute listlessness in several researchers." Consulate engineer's log