Riftbound Empower
None of the 67 cards with Empower print a reminder explaining it, so there is no official wording to quote here. Rather than guess at the rule, the cards themselves are below.
Which domains get it
Which sets print it
Cards that mention Empower
These do not have Empower themselves, their rules text refers to it.
Ambessa - Matriarch of War
When you empower something else, empower me. (I become Empowered if I'm not already.) Disempower me, any rune, exhaust: Ready a unit.
Ambessa - Matriarch of War
When you empower something else, empower me. Disempower me, any rune, exhaust: Ready a unit.
Ambessa - Matriarch of War
When you empower something else, empower me. Disempower me, any rune, exhaust: Ready a unit.
Ambessa - Matriarch of War (Metal Best Of)
When you empower something else, empower me. (I become Empowered if I'm not already.) Disempower me, any rune, exhaust: Ready a unit.
Ambessa - Matriarch of War (Metal Prize Wall)
When you empower something else, empower me. (I become Empowered if I'm not already.) Disempower me, any rune, exhaust: Ready a unit.
Hextech Formula
This enters exhausted. exhaust: Empower another gear. (It becomes Empowered if it's not already.)
Kennen - Heart of the Tempest
When you play a card from anywhere other than your hand, empower me. [Action][>] Disempower me, exhaust: Give a unit [Assault 2] this turn. (+2 might while it's an attacker.)
Kennen - Heart of the Tempest
When you play a card from anywhere other than your hand, empower me. [Action][>] Disempower me, exhaust: Give a unit [Assault 2] this turn.
Kennen - Heart of the Tempest
When you play a card from anywhere other than your hand, empower me. [Action][>] Disempower me, exhaust: Give a unit [Assault 2] this turn.
Kennen - Heart of the Tempest (Metal Best Of)
When you play a card from anywhere other than your hand, empower me. [Action][>] Disempower me, exhaust: Give a unit [Assault 2] this turn. (+2 might while it's an attacker.)
Kennen - Heart of the Tempest (Metal Prize Wall)
When you play a card from anywhere other than your hand, empower me. [Action][>] Disempower me, exhaust: Give a unit [Assault 2] this turn. (+2 might while it's an attacker.)
Mel - Soul's Reflection
When you empower something else, empower me. (I become Empowered if I'm not already.) Disempower me, exhaust: Give a unit at a battlefield -2 might this turn.
Every card with Empower
Most expensive first. Prices are Cardmarket EUR.
Akali - Rogue Assassin
Vendetta
EUR 2299.00
Ekko - Boy Who Shattered Time
Radiance
EUR 380.00
Akali - Rogue Assassin
Vendetta
EUR 312.00
Mel - Newly Awakened (Vendetta Nexus Night Promo)
Vendetta · 4 energy
EUR 239.99
Kayle - Justified
Vendetta · 3 energy
EUR 200.00
Jayce - Defender of Tomorrow
Vendetta
EUR 198.99
Gangplank - Naval
Vendetta · 6 energy
EUR 119.99
Mel - Defiant Soul
Vendetta · 5 energy
EUR 89.99
Ambessa - Respected and Feared
Vendetta · 5 energy
EUR 63.00
Ekko - Boy Who Shattered Time
Radiance
EUR 37.00
Kayle - Justified (Summoner's Skirmish Champion Promo)
Vendetta · 3 energy
EUR 20.00
Mel - Newly Awakened
Vendetta · 4 energy
EUR 17.95
Akali - Deadly Weapon
Vendetta · 3 energy
EUR 12.05
Helm of Suppression
Vendetta · 4 energy
EUR 7.00
Ambessa - Respected and Feared
Vendetta · 5 energy
EUR 5.95
Kharox
Vendetta · 6 energy
EUR 5.90
Nasus - Ascended
Vendetta · 8 energy
EUR 4.49
Ambessa - The Wolf
Vendetta · 4 energy
EUR 4.02
Mel - Newly Awakened
Vendetta · 4 energy
EUR 4.00
Akali - Deadly Weapon
Vendetta · 3 energy
EUR 2.83
Mel - Defiant Soul
Vendetta · 5 energy
EUR 2.00
Nasus - Ascended
Vendetta · 8 energy
EUR 1.60
Ambessa - Respected and Feared
Vendetta · 5 energy
EUR 1.00
Kayle - Justified (Summoner's Skirmish Top 8 Promo)
Vendetta · 3 energy
EUR 0.50
Gangplank - Naval
Vendetta · 6 energy
EUR 0.44
Kayle - Justified
Vendetta · 3 energy
EUR 0.38
Aurok General
Vendetta · 5 energy
EUR 0.37
Steel Paws
Vendetta · 1 energy
EUR 0.27
Tail-Cloaked Matriarch
Vendetta · 4 energy
EUR 0.23
Mel - Defiant Soul
Vendetta · 5 energy
EUR 0.20
Ambessa - The Wolf
Vendetta · 4 energy
EUR 0.19
Escaped Grayback
Vendetta · 3 energy
EUR 0.18
Frostcoat Mother
Vendetta · 3 energy
EUR 0.18
Hextech Disc
Vendetta · 4 energy
EUR 0.17
Risen Altar
Vendetta
EUR 0.16
Akali - Rogue Assassin
Vendetta
EUR 0.15
Jayce - Defender of Tomorrow
Vendetta
EUR 0.15
Glowstone
Vendetta · 2 energy
EUR 0.14
Grumpy Rockbear (Vendetta Nexus Night Promo)
Vendetta · 4 energy
EUR 0.14
Covert Informant
Vendetta · 3 energy
EUR 0.13
Dame the Despoiler
Vendetta · 5 energy
EUR 0.13
Noxian Emissary
Vendetta · 2 energy
EUR 0.12
Solari Sunhawk
Vendetta · 3 energy
EUR 0.12
Applied Researchers
Vendetta · 4 energy
EUR 0.11
Platewyrm Egg
Vendetta · 3 energy
EUR 0.11
Shadow Fiend
Vendetta · 2 energy
EUR 0.11
Jayce - Defender of Tomorrow
Vendetta
EUR 0.10
Kinkou Lifeblade
Vendetta · 4 energy
EUR 0.10
Rage Amplifier
Vendetta · 4 energy
EUR 0.10
Serene Ascetic
Vendetta · 3 energy
EUR 0.10
Baccai Witherclaw
Vendetta · 4 energy
EUR 0.08
Baccai Sandspinner
Vendetta · 6 energy
EUR 0.07
Legion Marauder
Vendetta · 2 energy
EUR 0.07
Punching Poro
Vendetta · 2 energy
EUR 0.06
Apprentice Mage
Vendetta · 3 energy
EUR 0.05
Grumpy Rockbear
Vendetta · 4 energy
EUR 0.05
Questionable Tome
Vendetta · 3 energy
EUR 0.05
Brutal Hunter
Vendetta · 3 energy
EUR 0.04
Tools of Empire
Vendetta · 4 energy
EUR 0.04
Ekko - Boy Who Shattered Time
Radiance
EUR 0.02
Akali - Rogue Assassin (Metal Best Of)
Vendetta
no price yet
Akali - Rogue Assassin (Metal Prize Wall)
Vendetta
no price yet
Ambessa - The Wolf (T1 Worlds Player Bundle - Doran)
T1 2025 Worlds Champion Collection · 4 energy
no price yet
Ambessa - The Wolf (T1 Worlds Signature - Doran)
T1 2025 Worlds Champion Collection · 4 energy
no price yet
Gangplank - Naval (Judge Promo)
Vendetta · 6 energy
no price yet
Jayce - Defender of Tomorrow (Metal Best Of)
Vendetta
no price yet
Jayce - Defender of Tomorrow (Metal Prize Wall)
Vendetta
no price yet