Confidence:StrongSolidPlausibleTentativeSpeculative

• Basri, Tomorrow's Champion

  W

  Legendary Creature — Human KnightW

  Basri, Tomorrow's Champion has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Morska, Undersea Sleuth

  GWU

  Legendary Creature — Vedalken Fish DetectiveGUW

  Both cards trigger when you draw a card — they fire together.
• Unearth

  B

  SorceryB

  Unearth has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Flame Blitz

  R

  EnchantmentR

  Flame Blitz has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Jolted Awake

  W

  SorceryW

  Jolted Awake has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Decree of Annihilation

  8RR

  SorceryR

  Decree of Annihilation has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Decree of Pain

  6BB

  SorceryB

  Decree of Pain has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Neutralize

  1UU

  InstantU

  Neutralize has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Resounding Thunder

  2R

  InstantBGR

  Resounding Thunder has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Boon of the Wish-Giver

  4UU

  SorceryU

  Boon of the Wish-Giver has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Spectacular Pileup

  3WW

  SorceryW

  Spectacular Pileup has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Webstrike Elite

  GG

  Creature — Insect ArcherG

  Webstrike Elite has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Intimidation Tactics

  B

  SorceryB

  Intimidation Tactics has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Soldevi Heretic

  2U

  Creature — Human ClericUW

  Draw pair: both cards engage with card draw. With a damage-or-draw trigger between them they form a draw engine.
• Viashino Sandsprinter

  1RR

  Creature — Lizard WarriorR

  Viashino Sandsprinter has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Akroma's Vengeance

  4WW

  SorceryW

  Akroma's Vengeance has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Pest Control

  WB

  SorceryBW

  Pest Control has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Unpredictable Cyclone

  3RR

  EnchantmentR

  Unpredictable Cyclone has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Easy Prey

  1B

  InstantB

  Easy Prey has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Shredded Sails

  1R

  InstantR

  Shredded Sails has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Expunge

  2B

  InstantB

  Expunge has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Repopulate

  1G

  InstantG

  Repopulate has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• The Balrog of Moria

  4BBR

  Legendary Creature — Avatar DemonBR

  The Balrog of Moria has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Shark Typhoon

  5U

  EnchantmentU

  Shark Typhoon has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.
• Sweltering Suns

  1RR

  SorceryR

  Sweltering Suns has cycling, and Otter-Penguin pays off whenever a card is cycled — the Astral Slide / Lightning Rift engine shape.