Confidence:StrongSolidPlausibleTentativeSpeculative

• Intellectual Offering

  4U

  InstantU

  Intellectual Offering untaps all (or many) permanents, refreshing Helvault's tap activation.
• Unstoppable Plan

  2U

  EnchantmentU

  Unstoppable Plan untaps all (or many) permanents, refreshing Helvault's tap activation.
• Unwinding Clock

  4

  ArtifactC

  Unwinding Clock untaps all (or many) permanents, refreshing Helvault's tap activation.
• Seedborn Muse

  3GG

  Creature — SpiritG

  Seedborn Muse untaps all (or many) permanents, refreshing Helvault's tap activation.
• Paradox Engine

  5

  Legendary ArtifactC

  Paradox Engine untaps all (or many) permanents, refreshing Helvault's tap activation.
• Dramatic Reversal

  1U

  InstantU

  Dramatic Reversal untaps all (or many) permanents, refreshing Helvault's tap activation.
• Blinkmoth Infusion

  12UU

  InstantU

  Blinkmoth Infusion untaps all (or many) permanents, refreshing Helvault's tap activation.
• Grim Giganotosaurus

  5BG

  Creature — DinosaurBG

  Grim Giganotosaurus wipes or mass-sacrifices creatures, and Helvault profits when creatures die — or comes back from the wipe itself.
• Bolas's Citadel

  3BBB

  Legendary ArtifactB

  Bolas's Citadel is a sacrifice outlet, enabling Helvault's death or sacrifice trigger.
• Daretti, Ingenious Iconoclast

  1BR

  Legendary Planeswalker — DarettiBR

  Daretti, Ingenious Iconoclast is a sacrifice outlet, enabling Helvault's death or sacrifice trigger.
• Technodrome

  2

  Artifact Creature — ConstructC

  Technodrome is a sacrifice outlet, enabling Helvault's death or sacrifice trigger.
• Fiery Gambit

  2R

  SorceryR

  Fiery Gambit untaps lands, fueling Helvault's mana-hungry effect.
• Innocuous Researcher

  3G

  Creature — Centaur DetectiveG

  Innocuous Researcher untaps lands, fueling Helvault's mana-hungry effect.
• Jan Jansen, Chaos Crafter

  RWB

  Legendary Creature — Gnome ArtificerBRW

  Jan Jansen, Chaos Crafter is a sacrifice outlet, enabling Helvault's death or sacrifice trigger.
• Rite of Oblivion

  WB

  SorceryBW

  Rite of Oblivion is a sacrifice outlet, enabling Helvault's death or sacrifice trigger.
• Time Spiral

  4UU

  SorceryU

  Time Spiral untaps lands, fueling Helvault's mana-hungry effect.
• Goblin Engineer

  1R

  Creature — Goblin ArtificerR

  Goblin Engineer is a sacrifice outlet, enabling Helvault's death or sacrifice trigger.
• Gourmand's Talent

  G

  Enchantment — ClassG

  Gourmand's Talent is a sacrifice outlet, enabling Helvault's death or sacrifice trigger.
• Oswald Fiddlebender

  1W

  Legendary Creature — Gnome ArtificerW

  Oswald Fiddlebender is a sacrifice outlet, enabling Helvault's death or sacrifice trigger.
• Nissa, Vastwood Seer // Nissa, Sage Animist

  2G

  Legendary Creature — Elf Scout // Legendary Planeswalker — NissaG

  Nissa, Vastwood Seer untaps lands, fueling Helvault's mana-hungry effect.
• Sidequest: Catch a Fish // Cooking Campsite

  2W

  Enchantment // LandW

  Sidequest: Catch a Fish is a sacrifice outlet, enabling Helvault's death or sacrifice trigger.
• Eaten Alive

  B

  SorceryB

  Eaten Alive is a sacrifice outlet, enabling Helvault's death or sacrifice trigger.
• Extus, Oriq Overlord // Awaken the Blood Avatar

  1WBB6BR

  Legendary Creature — Human Warlock // SorceryBRW

  Extus, Oriq Overlord is a sacrifice outlet, enabling Helvault's death or sacrifice trigger.
• Sage of Lat-Nam

  1U

  Creature — Human ArtificerU

  Sage of Lat-Nam is a sacrifice outlet, enabling Helvault's death or sacrifice trigger.
• What Must Be Done

  3WW

  SorceryW

  What Must Be Done wipes or mass-sacrifices creatures, and Helvault profits when creatures die — or comes back from the wipe itself.