Whenever this creature dies or another artifact you control is put into a graveyard from the battlefield, return to your hand target artifact card in your graveyard with lesser mana value.

Whenever this artifact or another nontoken artifact you control is put into a graveyard from the battlefield or is put into exile from the battlefield, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

When this creature enters, return target Equipment card from your graveyard to the battlefield attached to this creature.

Whenever you sacrifice an artifact, put a +1/+1 counter on this creature.

Whenever another artifact is put into a graveyard from the battlefield, this artifact deals 2 damage to that artifact's controller.

Whenever a land is put into a graveyard from the battlefield, this artifact deals 2 damage to that land's controller.

When this artifact is put into a graveyard from the battlefield, draft a card from Masterpiece Vault's spellbook and put it onto the battlefield. When an Equipment enters this way, attach it to up to one target creature you control.

: Sacrifice this artifact.

Whenever an artifact you control is put into a graveyard from the battlefield, if it wasn't sacrificed, you may pay . If you do, draw a card.

Whenever an artifact or enchantment is put into your graveyard from the battlefield, you gain 1 life.

, : This artifact deals 1 damage to any target.

When this artifact is put into a graveyard from the battlefield, it deals 5 damage to any target.

Whenever this creature becomes tapped, choose one —

• You may put a land card from your hand onto the battlefield tapped.

• Return target land card from your graveyard to the battlefield tapped.

, : Exile target creature you control.

, : Exile target creature you don't control.

When Helvault is put into a graveyard from the battlefield, return all cards exiled with it to the battlefield under their owners' control.

Whenever you cast an artifact spell, you may put a charge counter on this artifact.

Remove three charge counters from this artifact: Create a 3/3 colorless Golem artifact creature token.

Flying

When this Vehicle enters, exile target player's graveyard.

Whenever this Vehicle deals combat damage to a player, you may put a creature card exiled with this Vehicle onto the battlefield under your control.

Crew 3

At the beginning of your upkeep, sacrifice this artifact.

When this artifact is put into a graveyard from the battlefield, it deals 3 damage to any target.

As this artifact enters, choose a creature type.

Whenever you cast a spell of the chosen type, put a charge counter on this artifact.

Creatures you control of the chosen type get +1/+1 for each charge counter on this artifact.

: Create a 1/1 colorless Myr artifact creature token.

, Tap five untapped Myr you control: Search your library for a Myr creature card, put it onto the battlefield, then shuffle.

Equipped creature gets +3/+1.

Whenever equipped creature dies, return that card to the battlefield under your control if it's a Samurai card.

When Oathkeeper is put into a graveyard from the battlefield, exile equipped creature.

Equip

, : Target opponent mills a card, then repeats this process until a creature card or X cards have been put into their graveyard this way, whichever comes first. If one or more creature cards were put into that graveyard this way, sacrifice this artifact and put one of them onto the battlefield under your control. X can't be 0.