Confidence:StrongSolidPlausibleTentativeSpeculative

• Cayth, Famed Mechanist✓

  1URW

  Legendary Creature — Dwarf ArtificerRUW

  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.
• Kiki-Jiki, Mirror Breaker✓

  2RRR

  Legendary Creature — Goblin ShamanR

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• The Jolly Balloon Man✓

  1RW

  Legendary Creature — Human ClownRW

  Paid copy loop: one card makes copies of a creature, and each copy readies the copier to copy again — but a copy or the untap costs mana every time. It runs for as long as you can pay: a mana sink, infinite only with infinite mana.
• Orthion, Hero of Lavabrink✓

  3R

  Legendary Creature — Human SoldierR

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• Splinter Twin✓

  2RR

  Enchantment — AuraR

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• Master of the Wild Hunt

  2GG

  Creature — Human ShamanG

  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.
• Jenson Carthalion, Druid Exile

  GW

  Legendary Creature — Human DruidBGRUW

  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.
• Xu-Ifit, Osteoharmonist

  1BB

  Legendary Creature — Human WizardB

  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.
• Godsire

  4RGGW

  Creature — BeastGRW

  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.
• Mr. House, President and CEO

  RWB

  Legendary Artifact Creature — HumanBRW

  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.
• Cybernetica Datasmith

  1UB

  Artifact Creature — Human ArtificerBU

  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.
• Faldorn, Dread Wolf Herald

  1RG

  Legendary Creature — Human DruidGR

  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.
• Ulamog's Dreadsire

  10

  Creature — EldraziC

  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.
• Brightcap Badger // Fungus Frolic

  3G2G

  Creature — Badger Druid // Instant — AdventureG

  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.
• Bloodline Keeper // Lord of Lineage

  2BB

  Creature — Vampire // Creature — VampireB

  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.
• Captain Benjamin Sisko

  1W

  Legendary Creature — Human OfficerBGRUW

  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.
• Lagomos, Hand of Hatred

  1BR

  Legendary Creature — Human ShamanBR

  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.
• Ovinomancer

  2U

  Creature — Human WizardU

  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.
• Jan Jansen, Chaos Crafter

  RWB

  Legendary Creature — Gnome ArtificerBRW

  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.
• Lonis, Cryptozoologist

  GU

  Legendary Creature — Snake Elf ScoutGU

  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.
• Howlsquad Heavy

  2R

  Creature — Goblin MercenaryR

  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.
• Basri, Tomorrow's Champion

  W

  Legendary Creature — Human KnightW

  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.
• Lita, Mechanical Engineer

  2W

  Legendary Artifact Creature — ArtificerW

  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.
• Selvala, Eager Trailblazer

  2GW

  Legendary Creature — Elf ScoutGW

  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.
• Prize Pig

  1G

  Creature — BoarG

  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.