Confidence:StrongSolidPlausibleTentativeSpeculative

• Bloodline Recollector // Ancestral Craving

  1BB

  Creature — Vampire Warlock // InstantB

  Chomping Mastasaur can kill creatures (with damage or by shrinking them), enabling Bloodline Recollector's death-trigger or removal payoff.
• Chevill, Bane of Monsters

  BG

  Legendary Creature — Human RogueBG

  Chomping Mastasaur can kill creatures (with damage or by shrinking them), enabling Chevill, Bane of Monsters's death-trigger or removal payoff.
• Kraven the Hunter

  1BG

  Legendary Creature — Human Warrior VillainBG

  Chomping Mastasaur can kill creatures (with damage or by shrinking them), enabling Kraven the Hunter's death-trigger or removal payoff.
• Lagomos, Hand of Hatred

  1BR

  Legendary Creature — Human ShamanBR

  Chomping Mastasaur can kill creatures (with damage or by shrinking them), enabling Lagomos, Hand of Hatred's death-trigger or removal payoff.
• Xho Cai, Flickering Talon

  URW

  Legendary Creature — Bird MonkRUW

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• Eater of Virtue

  1

  Legendary Artifact — EquipmentC

  Chomping Mastasaur can kill creatures (with damage or by shrinking them), enabling Eater of Virtue's death-trigger or removal payoff.
• Conspiracy Theorist

  1R

  Creature — Human ShamanR

  Both cards trigger when a card is discarded — they fire together.
• Chandra, Flameshaper

  5RR

  Legendary Planeswalker — ChandraR

  Copy engine: one card makes copies of a creature — once a turn, or once for each time you pay its cost — and each copy pays off: the creature's enter-the-battlefield effect fires again, or the hasty copy uses its tap ability. Real, repeatable value — every copy has its turn or its price, so it never goes infinite on its own.
• Athreos, God of Passage

  1WB

  Legendary Enchantment Creature — GodBW

  Chomping Mastasaur can kill creatures (with damage or by shrinking them), enabling Athreos, God of Passage's death-trigger or removal payoff.
• Emeritus of Woe // Demonic Tutor

  3B1B

  Creature — Vampire Warlock // SorceryB

  Chomping Mastasaur can kill creatures (with damage or by shrinking them), enabling Emeritus of Woe's death-trigger or removal payoff.
• Inti, Seneschal of the Sun

  1R

  Legendary Creature — Human KnightR

  Both cards trigger when a card is discarded — they fire together.
• The Mighty Thor, Jane Foster

  1WU

  Legendary Creature — Human God HeroUW

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• The Meathook Massacre

  XBB

  Legendary EnchantmentB

  Chomping Mastasaur can kill creatures (with damage or by shrinking them), enabling The Meathook Massacre's death-trigger or removal payoff.
• Sticky Fingers

  R

  Enchantment — AuraR

  Chomping Mastasaur can kill creatures (with damage or by shrinking them), enabling Sticky Fingers's death-trigger or removal payoff.
• Thassa, Deep-Dwelling

  3U

  Legendary Enchantment Creature — GodU

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• Mirrorhall Mimic // Ghastly Mimicry

  3U

  Creature — Spirit // Enchantment — AuraU

  One-shot copy enabler: a card enters as a copy of another (Phantasmal Image, Body Double, Phyrexian Metamorph), firing the partner's substantive ETB once. Not a repeating chain — fires once on entry — but valuable when the partner's ETB is combo-grade (graveyard reanimator, mana doubler, etc.).
• Insidious Roots

  BG

  EnchantmentBG

  Both cards trigger when a card is discarded — they fire together.
• The Mind Stone

  1W

  Legendary Artifact — Infinity StoneW

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• The Ancient One

  UB

  Legendary Creature — Spirit GodBU

  Both cards trigger when a card is discarded — they fire together.
• Barrensteppe Siege

  2WB

  EnchantmentBW

  Chomping Mastasaur can kill creatures (with damage or by shrinking them), enabling Barrensteppe Siege's death-trigger or removal payoff.
• Lazotep Chancellor

  UB

  Creature — Zombie WizardBU

  Both cards trigger when a card is discarded — they fire together.
• Soulherder

  1WU

  Creature — SpiritUW

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• Sméagol, Helpful Guide

  1BG

  Legendary Creature — Halfling HorrorBG

  Chomping Mastasaur can kill creatures (with damage or by shrinking them), enabling Sméagol, Helpful Guide's death-trigger or removal payoff.
• Revel in Riches

  4B

  EnchantmentB

  Chomping Mastasaur can kill creatures (with damage or by shrinking them), enabling Revel in Riches's death-trigger or removal payoff.
• Bone Miser

  4B

  Creature — Zombie WizardB

  Both cards trigger when a card is discarded — they fire together.