Confidence:StrongSolidPlausibleTentativeSpeculative

• Delney, Streetwise Lookout

  2W

  Legendary Creature — Human ScoutW

  Delney, Streetwise Lookout makes Hardened Academic'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 Hardened Academic'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 Hardened Academic's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Wizard's Staff

  1U

  Artifact — EquipmentU

  Wizard's Staff makes Hardened Academic's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Reanimate

  B

  SorceryB

  Reanimate puts Hardened Academic onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Helping Hand

  W

  SorceryW

  Helping Hand puts Hardened Academic onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Unearth

  B

  SorceryB

  Unearth puts Hardened Academic onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Grave Researcher // Reanimate

  2BB

  Creature — Troll Warlock // SorceryB

  Grave Researcher puts Hardened Academic onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Amalia Benavides Aguirre

  WB

  Legendary Creature — Vampire ScoutBW

  Hardened Academic grants lifelink, converting Amalia Benavides Aguirre's damage into life-gain triggers.
• Professor Dellian Fel

  2BG

  Legendary Planeswalker — DellianBG

  Hardened Academic grants lifelink, converting Professor Dellian Fel's damage into life-gain triggers.
• Prize Pig

  1G

  Creature — BoarG

  Hardened Academic grants lifelink, converting Prize Pig's damage into life-gain triggers.
• Nazar, the Velvet Fang

  3B

  Legendary Creature — Vampire WarlockB

  Hardened Academic grants lifelink, converting Nazar, the Velvet Fang's damage into life-gain triggers.
• Kwia Vigorbloom

  3GWW

  Legendary Creature — Elder SphinxGW

  Hardened Academic grants lifelink, converting Kwia Vigorbloom's damage into life-gain triggers.
• Starscape Cleric

  1B

  Creature — Bat ClericB

  Hardened Academic grants lifelink, converting Starscape Cleric's damage into life-gain triggers.
• Trudge Garden

  2G

  EnchantmentG

  Hardened Academic grants lifelink, converting Trudge Garden's damage into life-gain triggers.
• Ajani, Strength of the Pride

  2WW

  Legendary Planeswalker — AjaniW

  Hardened Academic grants lifelink, converting Ajani, Strength of the Pride's damage into life-gain triggers.
• Karlov of the Ghost Council

  WB

  Legendary Creature — Spirit AdvisorBW

  Hardened Academic grants lifelink, converting Karlov of the Ghost Council's damage into life-gain triggers.
• South Wind Avatar

  3B

  Creature — Snake Spirit AvatarB

  Hardened Academic grants lifelink, converting South Wind Avatar's damage into life-gain triggers.
• Dr. Beverly Crusher

  2W

  Legendary Creature — Human DoctorW

  Hardened Academic grants lifelink, converting Dr. Beverly Crusher's damage into life-gain triggers.
• Bloombrute

  2GW

  Creature — Plant ElementalGW

  Hardened Academic grants lifelink, converting Bloombrute's damage into life-gain triggers.
• Niv-Mizzet, Ghost Counsel

  2WWBB

  Legendary Creature — Spirit DragonBW

  Hardened Academic grants lifelink, converting Niv-Mizzet, Ghost Counsel's damage into life-gain triggers.
• Lyra, Archangel of Dawn

  2W

  Legendary Creature — Angel KnightW

  Hardened Academic grants lifelink, converting Lyra, Archangel of Dawn's damage into life-gain triggers.
• Dina, Soul Steeper

  BG

  Legendary Creature — Dryad DruidBG

  Hardened Academic grants lifelink, converting Dina, Soul Steeper's damage into life-gain triggers.
• Marina Vendrell's Grimoire

  5U

  Legendary Artifact — BookU

  Hardened Academic grants lifelink, converting Marina Vendrell's Grimoire's damage into life-gain triggers.
• Heliod, Sun-Crowned

  2W

  Legendary Enchantment Creature — GodW

  Hardened Academic grants lifelink, converting Heliod, Sun-Crowned's damage into life-gain triggers.