When Blood Fountain enters the battlefield, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.") {3}{B}, {T}, Sacrifice Blood Fountain: Return up to two target creature cards from your graveyard to your hand.

When Ichor Wellspring enters the battlefield or is put into a graveyard from the battlefield, draw a card.

Metalcraft — When Bleak Coven Vampires enters the battlefield, if you control three or more artifacts, target player loses 4 life and you gain 4 life.

Flying When Kor Skyfisher enters the battlefield, return a permanent you control to its owner's hand.

Whenever an artifact enters the battlefield under your control, Reckless Fireweaver deals 1 damage to each opponent.

When Thraben Inspector enters the battlefield, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Exile target creature you control, then return it to the battlefield under its owner's control. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

As an additional cost to cast this spell, sacrifice a permanent. Foundry Helix deals 4 damage to any target. If the sacrificed permanent was an artifact, you gain 4 life.

Drossforge Bridge enters the battlefield tapped. Indestructible {T}: Add {B} or {R}.

Goldmire Bridge enters the battlefield tapped. Indestructible {T}: Add {W} or {B}.

({T}: Add {R}.)

({T}: Add {W}.)

Rustvale Bridge enters the battlefield tapped. Indestructible {T}: Add {R} or {W}.

Target player reveals their hand. You choose an artifact or creature card from it. That player discards that card.

Exile two target artifacts.

End the Festivities deals 1 damage to each opponent and each creature and planeswalker they control.

{T}, Sacrifice Nihil Spellbomb: Exile target player's graveyard. When Nihil Spellbomb is put into a graveyard from the battlefield, you may pay {B}. If you do, draw a card.