Confidence:StrongSolidPlausibleTentativeSpeculative

• Reanimate

  B

  SorceryB

  Reanimate puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Combat Calligrapher

  3W

  Creature — Bird ClericW

  Both cards produce the same kind of effect (shared token subtype).
• Grave Researcher // Reanimate

  2BB

  Creature — Troll Warlock // SorceryB

  Grave Researcher puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Priest of Fell Rites

  WB

  Creature — Human WarlockBW

  Priest of Fell Rites puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Forum Filibuster

  3WW

  EnchantmentW

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

  1B

  Enchantment — AuraB

  Animate Dead puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Exhume

  1B

  SorceryB

  Exhume puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Life // Death

  G1B

  Sorcery // SorceryBG

  Life puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Dance of the Dead

  1B

  Enchantment — AuraB

  Dance of the Dead puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Soul Exchange

  BB

  SorceryB

  Soul Exchange puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Delney, Streetwise Lookout

  2W

  Legendary Creature — Human ScoutW

  Delney, Streetwise Lookout makes Shadrix Silverquill's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Annie Joins Up

  1RGW

  Legendary EnchantmentGRW

  Annie Joins Up makes Shadrix Silverquill's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Roaming Throne

  4

  Artifact Creature — GolemC

  Roaming Throne makes Shadrix Silverquill's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Mirror Room // Fractured Realm

  2U5UU

  Enchantment — Room // Enchantment — RoomU

  Mirror Room makes Shadrix Silverquill's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Rat King, Verminister

  1B

  Legendary Creature — Rat AvatarB

  Rat King, Verminister puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Wizard's Staff

  1U

  Artifact — EquipmentU

  Wizard's Staff makes Shadrix Silverquill's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Emeritus of Truce // Swords to Plowshares

  1WWW

  Creature — Cat Cleric // InstantW

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

  1W

  Creature — Human WizardW

  Both cards produce the same kind of effect (shared token subtype).
• Yore-Tiller Nephilim

  WUBR

  Creature — NephilimBRUW

  Yore-Tiller Nephilim puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Sefris of the Hidden Ways

  WUB

  Legendary Creature — Human WizardBUW

  Sefris of the Hidden Ways puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Recurring Nightmare

  2B

  EnchantmentB

  Recurring Nightmare puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Hell's Caretaker

  3B

  Creature — HorrorB

  Hell's Caretaker puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Blot Out the Sky

  XWB

  SorceryBW

  Both cards produce the same kind of effect (shared token subtype).
• Kardur's Vicious Return

  2BR

  Enchantment — SagaBR

  Kardur's Vicious Return puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Meren of Clan Nel Toth

  2BG

  Legendary Creature — Human ShamanBG

  Meren of Clan Nel Toth puts Shadrix Silverquill onto the battlefield from a graveyard without casting it, so its mana cost is never paid.