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.
• Starscape Cleric

  1B

  Creature — Bat ClericB

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

  BBB

  Legendary Creature — Human Noble VillainB

  Copy engine: one card makes a copy of a creature every turn, and the other's enter-the-battlefield effect rewards each copy. Real, repeatable value — the partner can't untap or re-enter the copier, so it never goes infinite.
• Season of Growth

  1G

  EnchantmentG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Kiora, Master of the Depths

  2GU

  Legendary Planeswalker — KioraGU

  Both cards trigger when a creature enters the battlefield — they fire together.
• Valentin, Dean of the Vein // Lisette, Dean of the Root

  B2GG

  Legendary Creature — Vampire Warlock // Legendary Creature — Human DruidBG

  Both cards trigger on life gain — they fire together.
• Lagrella, the Magpie

  GWU

  Legendary Creature — Human SoldierGUW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Nazar, the Velvet Fang

  3B

  Legendary Creature — Vampire WarlockB

  Both cards trigger on life gain — they fire together.
• Karlov of the Ghost Council

  WB

  Legendary Creature — Spirit AdvisorBW

  Both cards trigger on life gain — they fire together.
• Spreading Plague

  4B

  EnchantmentB

  Both cards trigger when a creature enters the battlefield — they fire together.
• Sunstrike Legionnaire

  1W

  Creature — Human SoldierW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Amalia Benavides Aguirre

  WB

  Legendary Creature — Vampire ScoutBW

  Both cards trigger on life gain — they fire together.
• Trudge Garden

  2G

  EnchantmentG

  Both cards trigger on life gain — they fire together.