Confidence:StrongSolidPlausibleTentativeSpeculative

• Minsc & Boo, Timeless Heroes

  2RG

  Legendary Planeswalker — MinscGR

  Onakke Oathkeeper returns creatures from the graveyard to the battlefield, re-firing Minsc & Boo, Timeless Heroes's enter-the-battlefield effect.
• Teyo, Geometric Tactician

  2W

  Legendary Planeswalker — TeyoW

  Onakke Oathkeeper returns creatures from the graveyard to the battlefield, re-firing Teyo, Geometric Tactician's enter-the-battlefield effect.
• Niko Aris

  XWUU

  Legendary Planeswalker — NikoUW

  Onakke Oathkeeper returns creatures from the graveyard to the battlefield, re-firing Niko Aris's enter-the-battlefield effect.
• Isu the Abominable

  3UU

  Legendary Snow Creature — YetiGUW

  Onakke Oathkeeper returns creatures from the graveyard to the battlefield, re-firing Isu the Abominable's enter-the-battlefield effect.
• Kodama of the East Tree

  4GG

  Legendary Creature — SpiritG

  Onakke Oathkeeper returns creatures from the graveyard to the battlefield, re-firing Kodama of the East Tree's enter-the-battlefield effect.
• Amareth, the Lustrous

  3GWU

  Legendary Creature — DragonGUW

  Onakke Oathkeeper returns creatures from the graveyard to the battlefield, re-firing Amareth, the Lustrous's enter-the-battlefield effect.
• Innocuous Researcher

  3G

  Creature — Centaur DetectiveG

  Innocuous Researcher untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Fiery Gambit

  2R

  SorceryR

  Fiery Gambit untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Time Spiral

  4UU

  SorceryU

  Time Spiral untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Nissa, Vastwood Seer // Nissa, Sage Animist

  2G

  Legendary Creature — Elf Scout // Legendary Planeswalker — NissaG

  Nissa, Vastwood Seer untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Elrond, Moon-Reader

  2U

  Legendary Creature — Elf NobleU

  Onakke Oathkeeper has activated abilities that aren't mana abilities, fueling Elrond, Moon-Reader's activation-trigger.
• Nissa, Worldwaker

  3GG

  Legendary Planeswalker — NissaG

  Nissa, Worldwaker untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Rewind

  2UU

  InstantU

  Rewind untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Prophet of Kruphix

  3GU

  Creature — Human WizardGU

  Prophet of Kruphix untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Bumi, Unleashed

  3RG

  Legendary Creature — Human Noble AllyGR

  Bumi, Unleashed untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Finale of Revelation

  XUU

  SorceryU

  Finale of Revelation untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Zacama, Primal Calamity

  6RGW

  Legendary Creature — Elder DinosaurGRW

  Zacama, Primal Calamity untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Sphinx of the Second Sun

  6UU

  Creature — SphinxU

  Sphinx of the Second Sun untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Wilderness Reclamation

  3G

  EnchantmentG

  Wilderness Reclamation untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Sword of Feast and Famine

  3

  Artifact — EquipmentC

  Sword of Feast and Famine untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Treachery

  3UU

  Enchantment — AuraU

  Treachery untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Llanowar Druid

  1G

  Creature — Elf DruidG

  Llanowar Druid untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Nature's Will

  2GG

  EnchantmentG

  Nature's Will untaps lands, fueling Onakke Oathkeeper's mana-hungry effect.
• Rings of Brighthearth

  3

  ArtifactC

  Onakke Oathkeeper has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Illusionist's Bracers

  2

  Artifact — EquipmentC

  Onakke Oathkeeper has activated abilities that aren't mana abilities, fueling Illusionist's Bracers's activation-trigger.