Confidence:StrongSolidPlausibleTentativeSpeculative

• Intruder Alarm

  2U

  EnchantmentU

  One-directional refresh: one card can untap permanents the other wants to reuse. Not self-sustaining on its own — the untapper has to keep showing up.
• Jorn, God of Winter // Kaldring, the Rimestaff

  2G1UB

  Legendary Snow Creature — God // Legendary Snow ArtifactBGU

  Jorn, God of Winter untaps all (or many) permanents, refreshing A-Tyvar Kell's tap activation.
• Zurgo Stormrender

  RWB

  Legendary Creature — Orc WarriorBRW

  Both cards produce the same kind of effect (shared token subtype).
• Jace, Ingenious Mind-Mage

  4UU

  Legendary Planeswalker — JaceU

  Jace, Ingenious Mind-Mage untaps all (or many) permanents, refreshing A-Tyvar Kell's tap activation.
• Thranduil, Sindarin Liege // Silvan Rally

  2G/UG/U1G/UG/U

  Legendary Creature — Elf Noble // Sorcery — AdventureGU

  Both cards produce the same kind of effect (shared token subtype).
• Aggravated Assault

  2R

  EnchantmentR

  One-directional refresh: one card can untap permanents the other wants to reuse. Not self-sustaining on its own — the untapper has to keep showing up.
• Veteran Beastrider

  1GW

  Creature — Human KnightGW

  One-directional refresh: one card can untap permanents the other wants to reuse. Not self-sustaining on its own — the untapper has to keep showing up.
• Conclave Cavalier

  GGWW

  Creature — Centaur KnightGW

  Both cards produce the same kind of effect (shared token subtype).
• Voice of Victory

  1W

  Creature — Human BardW

  Both cards produce the same kind of effect (shared token subtype).
• Assure // Assemble

  G/WG/W4GW

  Instant // InstantGW

  Both cards produce the same kind of effect (shared token subtype).
• Saryth, the Viper's Fang

  2GG

  Legendary Creature — Human WarlockG

  One-directional refresh: one card can untap permanents the other wants to reuse. Not self-sustaining on its own — the untapper has to keep showing up.
• Dazzling Theater // Prop Room

  3W2W

  Enchantment — Room // Enchantment — RoomW

  Dazzling Theater untaps all (or many) permanents, refreshing A-Tyvar Kell's tap activation.
• Éomer, Marshal of Rohan

  2RR

  Legendary Creature — Human KnightR

  Éomer, Marshal of Rohan untaps all (or many) permanents, refreshing A-Tyvar Kell's tap activation.
• Ivorytusk Fortress

  2WBG

  Creature — ElephantBGW

  Ivorytusk Fortress untaps all (or many) permanents, refreshing A-Tyvar Kell's tap activation.
• Stadium Headliner

  R

  Creature — Goblin WarriorR

  Both cards produce the same kind of effect (shared token subtype).
• Unstoppable Plan

  2U

  EnchantmentU

  Unstoppable Plan untaps all (or many) permanents, refreshing A-Tyvar Kell's tap activation.
• Rhys the Redeemed

  G/W

  Legendary Creature — Elf WarriorGW

  Both cards produce the same kind of effect (shared token subtype).
• Plargg, Dean of Chaos // Augusta, Dean of Order

  1R2W

  Legendary Creature — Orc Shaman // Legendary Creature — Human ClericRW

  Plargg, Dean of Chaos untaps all (or many) permanents, refreshing A-Tyvar Kell's tap activation.
• Retrieve the Esper

  3U

  SorceryU

  Both cards produce the same kind of effect (shared token subtype).
• Najeela, the Blade-Blossom

  2R

  Legendary Creature — Human WarriorBGRUW

  One-directional refresh: one card can untap permanents the other wants to reuse. Not self-sustaining on its own — the untapper has to keep showing up.
• Lathril, Blade of the Elves

  2BG

  Legendary Creature — Elf NobleBG

  Both cards produce the same kind of effect (shared token subtype).
• Thorn Lieutenant

  1G

  Creature — Elf WarriorG

  Both cards produce the same kind of effect (shared token subtype).
• Betor, Kin to All

  2WBG

  Legendary Creature — Spirit DragonBGW

  Betor, Kin to All untaps all (or many) permanents, refreshing A-Tyvar Kell's tap activation.
• Imperious Perfect

  2G

  Creature — Elf WarriorG

  Both cards produce the same kind of effect (shared token subtype).
• Combat Celebrant

  2R

  Creature — Human WarriorR

  Combat Celebrant untaps all (or many) permanents, refreshing A-Tyvar Kell's tap activation.