Confidence:StrongSolidPlausibleTentativeSpeculative

• Worzel, the Protector

  1WWW

  Legendary Planeswalker — WorzelW

  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.
• 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.
• Hexavus

  6

  Artifact Creature — ConstructC

  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.
• Delney, Streetwise Lookout

  2W

  Legendary Creature — Human ScoutW

  Delney, Streetwise Lookout makes Trade Caravan'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 Trade Caravan'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 Trade Caravan'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 Trade Caravan's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Elrond, Moon-Reader

  2U

  Legendary Creature — Elf NobleU

  Trade Caravan has activated abilities that aren't mana abilities, fueling Elrond, Moon-Reader's activation-trigger.
• Illusionist's Bracers

  2

  Artifact — EquipmentC

  Trade Caravan has activated abilities that aren't mana abilities, fueling Illusionist's Bracers's activation-trigger.
• Rings of Brighthearth

  3

  ArtifactC

  Trade Caravan has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.