Confidence:StrongSolidPlausibleTentativeSpeculative

• Mist-Syndicate Naga

  2U

  Creature — Snake NinjaU

  Both cards produce the same kind of effect (shared token subtype).
• Kaito, Cunning Infiltrator

  1UU

  Legendary Planeswalker — KaitoU

  Both cards produce the same kind of effect (shared token subtype).
• Kaito Shizuki

  1UB

  Legendary Planeswalker — KaitoBU

  Both cards produce the same kind of effect (shared token subtype).
• The Last Ronin's Technique

  3W

  InstantW

  Both cards produce the same kind of effect (shared token subtype).
• Shredder, Shadow Master

  3BB

  Legendary Creature — Human NinjaB

  Both cards produce the same kind of effect (shared token subtype).
• Uneasy Alliance

  1W

  Enchantment — AuraW

  Both cards produce the same kind of effect (shared token subtype).
• Endless Foot Assault

  2W

  EnchantmentW

  Both cards produce the same kind of effect (shared token subtype).
• Foot Mystic

  3B

  Creature — Human Ninja WarlockB

  Both cards produce the same kind of effect (shared token subtype).
• Archivist of Gondor

  2U

  Creature — Human AdvisorU

  Both cards trigger on damage dealt — they fire together.
• Sygg, Wanderwine Wisdom // Sygg, Wanderbrine Shield

  1U

  Legendary Creature — Merfolk Wizard // Legendary Creature — Merfolk RogueUW

  Both cards trigger on damage dealt — they fire together.
• Reanimate

  B

  SorceryB

  Reanimate puts Dark Leo & Shredder onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Helping Hand

  W

  SorceryW

  Helping Hand puts Dark Leo & Shredder onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Unearth

  B

  SorceryB

  Unearth puts Dark Leo & Shredder onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Grave Researcher // Reanimate

  2BB

  Creature — Troll Warlock // SorceryB

  Grave Researcher puts Dark Leo & Shredder onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• The Beast, Deathless Prince

  2BR

  Legendary Creature — DemonBR

  Both cards trigger on damage dealt — they fire together.
• Vraska the Unseen

  3BG

  Legendary Planeswalker — VraskaBG

  Both cards trigger on damage dealt — they fire together.
• The Rani

  1UBR

  Legendary Creature — Time Lord ScientistBRU

  Both cards trigger on damage dealt — they fire together.
• One with Nature

  G

  Enchantment — AuraG

  Both cards trigger on damage dealt — they fire together.
• Gonti, Night Minister

  2BB

  Legendary Creature — Aetherborn RogueB

  Both cards trigger on damage dealt — they fire together.
• Lost Jitte

  1

  Legendary Artifact — EquipmentC

  Both cards trigger on damage dealt — they fire together.
• Felix Five-Boots

  2BGU

  Legendary Creature — Ooze RogueBGU

  Felix Five-Boots makes Dark Leo & Shredder's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Puppet Master, String Puller

  2R

  Legendary Creature — Human Artificer VillainR

  Both cards trigger on damage dealt — they fire together.
• Teysa, Envoy of Ghosts

  5WB

  Legendary Creature — Human AdvisorBW

  Both cards trigger on damage dealt — they fire together.
• The Master, Mesmerist

  2UB

  Legendary Creature — Time Lord RogueBU

  Both cards trigger on damage dealt — they fire together.
• All-Out Assault

  2RWB

  EnchantmentBRW

  All-Out Assault grants an extra combat phase, enabling Dark Leo & Shredder's combat-trigger payoff.