Confidence:StrongSolidPlausibleTentativeSpeculative

• Aerial Extortionist

  3WW

  Creature — Bird SoldierW

  Aerial Extortionist exiles a permanent and lets its owner cast it again — the recast fires Jace, Mirror Mage's cast trigger or its enter-the-battlefield effect.
• The Legend of Yangchen // Avatar Yangchen

  3WW

  Enchantment — Saga // Legendary Creature — AvatarW

  The Legend of Yangchen exiles a permanent and lets its owner cast it again — the recast fires Jace, Mirror Mage's cast trigger or its enter-the-battlefield effect.
• Soul Partition

  1W

  InstantW

  Soul Partition exiles a permanent and lets its owner cast it again — the recast fires Jace, Mirror Mage's cast trigger or its enter-the-battlefield effect.
• Appa, Steadfast Guardian

  2WW

  Legendary Creature — Bison AllyW

  Appa, Steadfast Guardian exiles a permanent and lets its owner cast it again — the recast fires Jace, Mirror Mage's cast trigger or its enter-the-battlefield effect.
• Airbending Lesson

  2W

  Instant — LessonW

  Airbending Lesson exiles a permanent and lets its owner cast it again — the recast fires Jace, Mirror Mage's cast trigger or its enter-the-battlefield effect.
• Suspend Aggression

  1RW

  InstantRW

  Suspend Aggression exiles a permanent and lets its owner cast it again — the recast fires Jace, Mirror Mage's cast trigger or its enter-the-battlefield effect.
• Aang, the Last Airbender

  3W

  Legendary Creature — Human Avatar AllyW

  Aang, the Last Airbender exiles a permanent and lets its owner cast it again — the recast fires Jace, Mirror Mage's cast trigger or its enter-the-battlefield effect.
• Appa, Loyal Sky Bison

  4WW

  Legendary Creature — Bison AllyW

  Appa, Loyal Sky Bison exiles a permanent and lets its owner cast it again — the recast fires Jace, Mirror Mage's cast trigger or its enter-the-battlefield effect.
• Release to the Wind

  2U

  InstantU

  Release to the Wind exiles a permanent and lets its owner cast it again — the recast fires Jace, Mirror Mage's cast trigger or its enter-the-battlefield effect.
• Elesh Norn, Mother of Machines

  4W

  Legendary Creature — Phyrexian PraetorW

  Elesh Norn, Mother of Machines makes Jace, Mirror Mage's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Virtue of Knowledge // Vantress Visions

  4U1U

  Enchantment // Instant — AdventureU

  Virtue of Knowledge makes Jace, Mirror Mage's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Starfield Vocalist

  3U

  Creature — Human BardU

  Starfield Vocalist makes Jace, Mirror Mage's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Yarok, the Desecrated

  2BGU

  Legendary Creature — Elemental HorrorBGU

  Yarok, the Desecrated makes Jace, Mirror Mage's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Gandalf the White

  3WW

  Legendary Creature — Avatar WizardW

  Gandalf the White makes Jace, Mirror Mage'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 Jace, Mirror Mage's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Rings of Brighthearth

  3

  ArtifactC

  Jace, Mirror Mage has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.