Confidence:StrongSolidPlausibleTentativeSpeculative

• Clock of Omens

  4

  ArtifactC

  One-directional refresh: one card can untap permanents the other wants to reuse. Not self-sustaining on its own — the untapper has to keep showing up.
• Intellectual Offering

  4U

  InstantU

  Intellectual Offering untaps all (or many) permanents, refreshing Hammer of Purphoros's tap activation.
• Blade Splicer

  2W

  Creature — Phyrexian Human ArtificerW

  Both cards produce the same kind of effect (shared token subtype).
• Unstoppable Plan

  2U

  EnchantmentU

  Unstoppable Plan untaps all (or many) permanents, refreshing Hammer of Purphoros's tap activation.
• Master Splicer

  3W

  Creature — Phyrexian Human ArtificerW

  Both cards produce the same kind of effect (shared token subtype).
• Wing Splicer

  3U

  Creature — Phyrexian Human ArtificerU

  Both cards produce the same kind of effect (shared token subtype).
• Maul Splicer

  6G

  Creature — Phyrexian Human ArtificerG

  Both cards produce the same kind of effect (shared token subtype).
• Unwinding Clock

  4

  ArtifactC

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

  3GG

  Creature — SpiritG

  Seedborn Muse untaps all (or many) permanents, refreshing Hammer of Purphoros's tap activation.
• Darksteel Splicer

  6W

  Creature — Phyrexian ArtificerW

  Both cards produce the same kind of effect (shared token subtype).
• Sensor Splicer

  4W

  Creature — Phyrexian ArtificerW

  Both cards produce the same kind of effect (shared token subtype).
• Ich-Tekik, Salvage Splicer

  4G

  Legendary Creature — Phyrexian Human ArtificerG

  Both cards produce the same kind of effect (shared token subtype).
• Paradox Engine

  5

  Legendary ArtifactC

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

  1U

  InstantU

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

  12UU

  InstantU

  Blinkmoth Infusion untaps all (or many) permanents, refreshing Hammer of Purphoros's tap activation.
• Baloth Prime

  3G

  Creature — BeastG

  Hammer of Purphoros is a sacrifice outlet, enabling Baloth Prime's death or sacrifice trigger.
• General Ferrous Rokiric

  1RW

  Legendary Creature — Human SoldierRW

  Both cards produce the same kind of effect (shared token subtype).
• Venser, Corpse Puppet

  UB

  Legendary Creature — Phyrexian Zombie WizardBU

  Both cards produce the same kind of effect (shared token subtype).
• Nexus of Becoming

  6

  ArtifactC

  Both cards produce the same kind of effect (shared token subtype).
• Sand Scout

  1W

  Creature — Human ScoutW

  Hammer of Purphoros is a sacrifice outlet, enabling Sand Scout's death or sacrifice trigger.
• Tuktuk the Explorer

  2R

  Legendary Creature — GoblinR

  Both cards produce the same kind of effect (shared token subtype).
• Legion Extruder

  1R

  ArtifactR

  Both cards produce the same kind of effect (shared token subtype).
• Wind Zendikon

  U

  Enchantment — AuraU

  Hammer of Purphoros is a sacrifice outlet, enabling Wind Zendikon's death or sacrifice trigger.
• Titania, Voice of Gaea

  1GG

  Legendary Creature — ElementalG

  Hammer of Purphoros is a sacrifice outlet, enabling Titania, Voice of Gaea's death or sacrifice trigger.
• Titan Forge

  3

  ArtifactC

  Both cards produce the same kind of effect (shared token subtype).