Confidence:StrongSolidPlausibleTentativeSpeculative

• Oriq Loremage

  2BB

  Creature — Human WarlockB

  Oriq Loremage puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Buried Alive

  2B

  SorceryB

  Buried Alive puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Entomb

  B

  InstantB

  Entomb puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Cynical Loner

  1B

  Creature — Human SurvivorB

  Cynical Loner puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Final Parting

  3BB

  SorceryB

  Final Parting puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Unmarked Grave

  1B

  SorceryB

  Unmarked Grave puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Gravebreaker Lamia

  4B

  Enchantment Creature — Snake LamiaB

  Gravebreaker Lamia puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Vile Entomber

  2BB

  Creature — Zombie WarlockB

  Vile Entomber puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Jarad's Orders

  2BG

  SorceryBG

  Jarad's Orders puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Innkeeper's Talent

  1G

  Enchantment — ClassG

  Counter synergy: both cards work with the same kind of counters, so their effects stack in a counters deck. Not necessarily a closed loop on its own.
• Dina's Guidance

  1BG

  InstantBG

  Dina's Guidance puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Lively Dirge

  1B

  SorceryB

  Lively Dirge puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Corpse Connoisseur

  4B

  Creature — Zombie WizardB

  Corpse Connoisseur puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Scion of the Ur-Dragon

  WUBRG

  Legendary Creature — Dragon AvatarBGRUW

  Scion of the Ur-Dragon puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Mythos of Brokkos

  2GG

  SorceryBGU

  Mythos of Brokkos puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Iname, Death Aspect

  4BB

  Legendary Creature — SpiritB

  Iname, Death Aspect puts a creature card from your library straight into your graveyard, and Soul Stair Expedition returns it from there — onto the battlefield or to your hand.
• Traveling Chocobo

  2G

  Creature — BirdG

  Traveling Chocobo makes Soul Stair Expedition's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Dragonback Assault

  3GUR

  EnchantmentGRU

  Both cards trigger on landfall — they fire together.
• Sapling Nursery

  6GG

  EnchantmentG

  Both cards trigger on landfall — they fire together.
• The Lost and the Damned

  1UR

  EnchantmentRU

  Both cards trigger on landfall — they fire together.
• Springheart Nantuko

  1G

  Enchantment Creature — Insect MonkG

  Both cards trigger on landfall — they fire together.
• Pia Nalaar, Consul of Revival

  RW

  Legendary Creature — Human ArtificerRW

  Both cards trigger on landfall — they fire together.
• Shanid, Sleepers' Scourge

  1RWB

  Legendary Creature — Human KnightBRW

  Both cards trigger on landfall — they fire together.
• Omnath, Locus of Rage

  3RRGG

  Legendary Creature — ElementalGR

  Both cards trigger on landfall — they fire together.
• Omnath, Locus of Creation

  RGWU

  Legendary Creature — ElementalGRUW

  Both cards trigger on landfall — they fire together.