Confidence:StrongSolidPlausibleTentativeSpeculative

• Intellectual Offering

  4U

  InstantU

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

  2U

  EnchantmentU

  Unstoppable Plan untaps all (or many) permanents, refreshing Horn of Deafening's tap activation.
• Seedborn Muse

  3GG

  Creature — SpiritG

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

  4

  ArtifactC

  Unwinding Clock untaps all (or many) permanents, refreshing Horn of Deafening's tap activation.
• Paradox Engine

  5

  Legendary ArtifactC

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

  1U

  InstantU

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

  12UU

  InstantU

  Blinkmoth Infusion untaps all (or many) permanents, refreshing Horn of Deafening's tap activation.
• Bruce Banner // The Incredible Hulk

  U2RRGG

  Legendary Creature — Human Scientist Hero // Legendary Creature — Gamma Berserker HeroGRU

  Bruce Banner grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• All-Out Assault

  2RWB

  EnchantmentBRW

  All-Out Assault grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Aggravated Assault

  2R

  EnchantmentR

  Aggravated Assault grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Godo, Bandit Warlord

  5R

  Legendary Creature — Human BarbarianR

  Godo, Bandit Warlord grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Balthier and Fran

  1RG

  Legendary Creature — Human RabbitGR

  Balthier and Fran grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Fury of the Horde

  5RR

  SorceryR

  Fury of the Horde grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Fear of Missing Out

  1R

  Enchantment Creature — NightmareR

  Fear of Missing Out grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Waves of Aggression

  3R/WR/W

  SorceryRW

  Waves of Aggression grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Éomer, Marshal of Rohan

  2RR

  Legendary Creature — Human KnightR

  Éomer, Marshal of Rohan grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Bumi, Unleashed

  3RG

  Legendary Creature — Human Noble AllyGR

  Bumi, Unleashed grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Relentless Assault

  2RR

  SorceryR

  Relentless Assault grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Najeela, the Blade-Blossom

  2R

  Legendary Creature — Human WarriorBGRUW

  Najeela, the Blade-Blossom grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Combat Celebrant

  2R

  Creature — Human WarriorR

  Combat Celebrant grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Aurelia, the Warleader

  2RRWW

  Legendary Creature — AngelRW

  Aurelia, the Warleader grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• World at War

  3RR

  SorceryR

  World at War grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Response // Resurgence

  R/WR/W3RW

  Instant // SorceryRW

  Response grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Raph & Leo, Sibling Rivals

  1R/WR/W

  Legendary Creature — Mutant Ninja TurtleRW

  Raph & Leo, Sibling Rivals grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.
• Anzrag, the Quake-Mole

  2RG

  Legendary Creature — Mole GodGR

  Anzrag, the Quake-Mole grants an extra combat phase, enabling Horn of Deafening's combat-trigger payoff.