Confidence:StrongSolidPlausibleTentativeSpeculative

• Time Vault

  2

  ArtifactC

  Time Vault has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Ugin, Eye of the Storms

  7

  Legendary Planeswalker — UginC

  Ugin, Eye of the Storms has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Chandra, Torch of Defiance

  2RR

  Legendary Planeswalker — ChandraR

  Chandra, Torch of Defiance has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Sensei's Divining Top

  1

  ArtifactC

  Sensei's Divining Top has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Karn, Scion of Urza

  4

  Legendary Planeswalker — KarnC

  Karn, Scion of Urza has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Zul Ashur, Lich Lord

  1B

  Legendary Creature — Zombie WarlockB

  Zul Ashur, Lich Lord has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Minsc & Boo, Timeless Heroes

  2RG

  Legendary Planeswalker — MinscGR

  Minsc & Boo, Timeless Heroes has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Asmodeus the Archfiend

  4BB

  Legendary Creature — Devil GodB

  Asmodeus the Archfiend has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Grim Monolith

  2

  ArtifactC

  Grim Monolith has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Oko, Thief of Crowns

  1GU

  Legendary Planeswalker — OkoGU

  Oko, Thief of Crowns has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Kaya, Intangible Slayer

  3WWBB

  Legendary Planeswalker — KayaBW

  Kaya, Intangible Slayer has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Nicol Bolas, the Ravager // Nicol Bolas, the Arisen

  1UBR

  Legendary Creature — Elder Dragon // Legendary Planeswalker — BolasBRU

  Nicol Bolas, the Ravager has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Cybernetica Datasmith

  1UB

  Artifact Creature — Human ArtificerBU

  Cybernetica Datasmith has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• The Theorist, Jace Beleren

  2UU

  Legendary Planeswalker — JaceU

  The Theorist, Jace Beleren has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Wrenn and Six

  RG

  Legendary Planeswalker — WrennGR

  Wrenn and Six has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Brigone, Soldier of Meletis

  1W

  Legendary Creature — Human SoldierW

  Brigone, Soldier of Meletis has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Chandra, Flameshaper

  5RR

  Legendary Planeswalker — ChandraR

  Chandra, Flameshaper has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Jace, the Perfected Mind

  2UU/P

  Legendary Planeswalker — JaceU

  Jace, the Perfected Mind has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Skrelv, Defector Mite

  W

  Legendary Artifact Creature — Phyrexian MiteW

  Skrelv, Defector Mite has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Yisan, the Wanderer Bard

  2G

  Legendary Creature — Human Rogue BardG

  Yisan, the Wanderer Bard has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Marwyn, the Preserver

  1G

  Legendary Creature — Elf DruidG

  Marwyn, the Preserver has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Fiend Artisan

  B/GB/G

  Creature — NightmareBG

  Fiend Artisan has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Weaver of Harmony

  1G

  Enchantment Creature — Snake DruidG

  Weaver of Harmony has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Ugin, the Spirit Dragon

  8

  Legendary Planeswalker — UginC

  Ugin, the Spirit Dragon has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Professor Dellian Fel

  2BG

  Legendary Planeswalker — DellianBG

  Professor Dellian Fel has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.