Confidence:StrongSolidPlausibleTentativeSpeculative

• Season of the Bold

  3RR

  SorceryR

  Both cards trigger when a spell is cast — they fire together.
• Pyromancer's Assault

  3R

  EnchantmentR

  Both cards trigger when a spell is cast — they fire together.
• Black Lotus

  0

  ArtifactC

  Black Lotus is a free spell, so Kozilek's Sentinel's cast trigger fires for nothing.
• Mana Crypt

  0

  ArtifactC

  Mana Crypt is a free spell, so Kozilek's Sentinel's cast trigger fires for nothing.
• Mox Emerald

  0

  ArtifactG

  Mox Emerald is a free spell, so Kozilek's Sentinel's cast trigger fires for nothing.
• Mox Jet

  0

  ArtifactB

  Mox Jet is a free spell, so Kozilek's Sentinel's cast trigger fires for nothing.
• Mox Pearl

  0

  ArtifactW

  Mox Pearl is a free spell, so Kozilek's Sentinel's cast trigger fires for nothing.
• Mox Ruby

  0

  ArtifactR

  Mox Ruby is a free spell, so Kozilek's Sentinel's cast trigger fires for nothing.
• Mox Sapphire

  0

  ArtifactU

  Mox Sapphire is a free spell, so Kozilek's Sentinel's cast trigger fires for nothing.
• Sarkhan's Unsealing

  3R

  EnchantmentR

  Both cards trigger when a spell is cast — they fire together.
• Song of Creation

  1GUR

  EnchantmentGRU

  Both cards trigger when a spell is cast — they fire together.
• Ambling Stormshell

  3UU

  Creature — TurtleU

  Both cards trigger when a spell is cast — they fire together.
• Lotus Petal

  0

  ArtifactC

  Lotus Petal is a free spell, so Kozilek's Sentinel's cast trigger fires for nothing.
• Mercurial Spelldancer

  1U

  Creature — Phyrexian RogueU

  Both cards trigger when a spell is cast — they fire together.
• Lion's Eye Diamond

  0

  ArtifactC

  Lion's Eye Diamond is a free spell, so Kozilek's Sentinel's cast trigger fires for nothing.
• God-Eternal Oketra

  3WW

  Legendary Creature — Zombie GodW

  Both cards trigger when a spell is cast — they fire together.
• Baron Helmut Zemo

  BBB

  Legendary Creature — Human Noble VillainB

  Both cards trigger when a spell is cast — they fire together.
• Geometer's Arthropod

  GU

  Creature — Fractal CrabGU

  Both cards trigger when a spell is cast — they fire together.
• Cosmic Crucible

  4GU

  EnchantmentGU

  Both cards trigger when a spell is cast — they fire together.
• Quandrix Apprentice

  GU

  Creature — Human WizardGU

  Both cards trigger when a spell is cast — they fire together.
• Season of Growth

  1G

  EnchantmentG

  Both cards trigger when a spell is cast — they fire together.
• Ugin, Eye of the Storms

  7

  Legendary Planeswalker — UginC

  Both cards trigger when a spell is cast — they fire together.
• Jenson Carthalion, Druid Exile

  GW

  Legendary Creature — Human DruidBGRUW

  Both cards trigger when a spell is cast — they fire together.
• Chrome Host Seedshark

  2U

  Creature — Phyrexian SharkU

  Both cards trigger when a spell is cast — they fire together.
• The Lost and the Damned

  1UR

  EnchantmentRU

  Both cards trigger when a spell is cast — they fire together.