Hangarback Walker [Kaladesh Inventions] Ultimate Masters Box Topper After using the signet to

After using the signet to finish the miniaturization spell

Exile any number of historic cards from your graveyard with total mana value 30 or greater: You get an emblem with "Creatures you control have base power and toughness 9/9

Set: World Championship Decks 1999 Type: Instant Rarity: Rare Cost: {3}{B}{B} As an additional cost to cast this spell

Set: Judge Gift Cards 2023 Type: Artifact Creature — Scarecrow Rarity: Rare Cost: {2} As Painter's Servant enters the battlefield

such as Chopper

Hangarback Walker [Kaladesh Inventions] Ultimate Masters Box Topper After using the signet toSet: Kaladesh Inventions Type: Artifact Creature Construct Rarity: Mythic Cost: {X}{X} Hangarback Walker enters the battlefield with X +1 +1 counters on it. When Hangarback Walker dies, create a 1 1 colorless Thopter artifact creature token with flying for each +1 +1 counter on Hangarback Walker. {1}, {T}: Put a +1 +1 counter on Hangarback Walker.