Confidence:StrongSolidPlausibleTentativeSpeculative

• Professor Dellian Fel

  2BG

  Legendary Planeswalker — DellianBG

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• Resplendent Angel

  1WW

  Creature — AngelW

  Damage + lifelink: lifelink converts damage on one side into life triggers the partner pays off — the canonical Heliod / Karlov family.
• Bloombrute

  2GW

  Creature — Plant ElementalGW

  Damage + lifelink: lifelink converts damage on one side into life triggers the partner pays off — the canonical Heliod / Karlov family.
• Heliod, Sun-Crowned

  2W

  Legendary Enchantment Creature — GodW

  Damage + lifelink: lifelink converts damage on one side into life triggers the partner pays off — the canonical Heliod / Karlov family.
• Ajani Resolute

  1W

  Legendary Planeswalker — AjaniW

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• Vito, Thorn of the Dusk Rose

  2B

  Legendary Creature — Vampire ClericB

  Damage + lifelink: lifelink converts damage on one side into life triggers the partner pays off — the canonical Heliod / Karlov family.
• Leyline of Hope

  2WW

  EnchantmentW

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• South Wind Avatar

  3B

  Creature — Snake Spirit AvatarB

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• The Destined White Mage

  2W

  Legendary Creature — Human ClericW

  Damage + lifelink: lifelink converts damage on one side into life triggers the partner pays off — the canonical Heliod / Karlov family.
• Knight of Dawn's Light

  1W

  Creature — Human KnightW

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• Titanbones, Towering Heart

  3G

  Legendary Creature — Skeleton DruidG

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• Bre of Clan Stoutarm

  2RW

  Legendary Creature — Giant WarriorRW

  Damage + lifelink: lifelink converts damage on one side into life triggers the partner pays off — the canonical Heliod / Karlov family.
• Oloro, Ageless Ascetic

  3WUB

  Legendary Creature — Giant SoldierBUW

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• Cleric of Life's Bond

  WB

  Creature — Vampire ClericBW

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• Christine Chapel, Combat Medic

  3G

  Legendary Creature — Human DoctorG

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• Tolarian Kraken

  4UU

  Creature — KrakenU

  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.
• The Archimandrite

  2URW

  Legendary Creature — Human AdvisorRUW

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• Heron of Hope

  3W

  Creature — BirdW

  Damage + lifelink: lifelink converts damage on one side into life triggers the partner pays off — the canonical Heliod / Karlov family.
• The Wind Crystal

  2WW

  Legendary ArtifactW

  Damage + lifelink: lifelink converts damage on one side into life triggers the partner pays off — the canonical Heliod / Karlov family.
• Copperhorn Scout

  G

  Creature — Elf ScoutG

  Copperhorn Scout untaps all (or many) permanents, refreshing Niv-Mizzet, Ghost Counsel's tap activation.
• Karlov of the Ghost Council

  WB

  Legendary Creature — Spirit AdvisorBW

  Both cards trigger on life gain — they fire together.
• White Plume Adventurer

  2W

  Creature — Orc ClericW

  White Plume Adventurer untaps all (or many) permanents, refreshing Niv-Mizzet, Ghost Counsel's tap activation.
• Sheoldred, the Apocalypse

  2BB

  Legendary Creature — Phyrexian PraetorB

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• Jace, Ingenious Mind-Mage

  4UU

  Legendary Planeswalker — JaceU

  Jace, Ingenious Mind-Mage untaps all (or many) permanents, refreshing Niv-Mizzet, Ghost Counsel's tap activation.
• Aggravated Assault

  2R

  EnchantmentR

  Aggravated Assault untaps all (or many) permanents, refreshing Niv-Mizzet, Ghost Counsel's tap activation.