If you would get one or more {E} (energy counters), you get twice that many {E} instead. {T}: You get {E}, then you may pay one or more {E}. If you do, create an X/X black Aetherborn creature token, where X is the amount of {E} paid this way.

Flying Whenever this creature or another creature you control enters, you get {E} (an energy counter). Whenever this creature attacks, you may pay {E}{E}. If you do, put a +1/+1 counter on it and tap up to one target creature defending player controls.

Whenever a permanent you control is put into a graveyard, you get {E} (an energy counter). {T}, Pay six {E}: Look at the top six cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.

Whenever one or more artifact creatures you control deal combat damage to a player, you get {E} (an energy counter). Pay {E}{E}{E}: Create a tapped 3/3 colorless Robot artifact creature token.

{T}: You get {E}{E} (two energy counters). {T}, Pay {E}{E}: Tap target creature. {T}, Pay {E}{E}{E}: Draw a card. Pay {E}{E}{E}{E}: This Vehicle becomes an artifact creature until end of turn. Crew 4

{T}: You get {E} (an energy counter). {T}, Pay {E}{E}{E}: This artifact deals 2 damage to target player or planeswalker.

Whenever a creature you control enters, you get {E} (an energy counter). {4}, {T}: Return target creature you control to its owner's hand.

If you would get one or more {E} (energy counters), you get that many plus one {E} instead. {T}: Draw a card. Activate only if you've paid or lost four or more {E} this turn.

Landfall — Whenever a land you control enters, you get {E} (an energy counter). {T}, Pay six {E}: Draw three cards.

Flash This spell costs {1} less to cast for each creature attacking you. When this creature enters, you get {E} for each creature attacking you. At the beginning of combat on your turn, you may pay {E}{E}{E}. If you do, put a +1/+1 counter on each creature you control.

{T}: Add one mana of any color in your commander's color identity.

{T}: Add {C}. {3}, {T}: You get {E}{E}{E} (three energy counters). {T}, Pay {E}{E}{E}: Add three mana in any combination of colors.

{1}, {T}: Add {U}{R}.

{T}: Add {U}. {2}{U}: Put an hour counter on this artifact. At the beginning of each upkeep, put an hour counter on this artifact. When the twelfth hour counter is put on this artifact, shuffle your hand and graveyard into your library, then draw seven cards. Exile this artifact.

{T}: Add {C}{C}.

This artifact enters tapped. When this artifact enters, you get {E}{E}{E} (three energy counters). {T}: Add {C}. {T}, Pay {E}: Add one mana of any color.

When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When this creature dies, you may draw a card.

{T}: Add {C}. {T}: Add {R} or {W}. This artifact deals 1 damage to you.

{T}: Add {C}. {T}: Add {W} or {U}. This artifact deals 1 damage to you.

You have no maximum hand size. {T}: Add {C}.

Whenever Gonti's Aether Heart or another artifact you control enters, you get {E}{E} (two energy counters). Pay eight {E}, Exile Gonti's Aether Heart: Take an extra turn after this one.

Revolt — As long as a permanent left the battlefield under your control this turn, if a source you control would deal noncombat damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead. Whenever you get one or more {E}, this enchantment deals that much damage to any target.

Whenever you put one or more counters on a permanent or player, this enchantment deals that much damage to target opponent, creature an opponent controls, or planeswalker an opponent controls.

If a red or artifact source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 1 instead.

Whenever another creature you control enters, this creature deals 1 damage to each opponent. Unearth {R} ({R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Haste Whenever this creature attacks, exile the top card of your library. You may get {E}{E} (two energy counters). If you don't, you may play that card this turn. {T}, Pay {E}{E}{E}: This creature deals 3 damage to any target.

When this land enters, you get {E} (an energy counter). {T}: Add {C}. {T}, Pay {E}: Add one mana of any color.

{T}: Add one mana of any color in your commander's color identity.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

{T}: Add one mana of any color that a land an opponent controls could produce.

{T}: Add {C}. {1}, {T}: You get {E} (an energy counter). {3}, {T}, Pay X {E}, Sacrifice this land: Destroy target nonland permanent with mana value X. Activate only as a sorcery.

({T}: Add {W} or {U}.) This land enters tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {U}.)

{T}: Add {C}. {1}{R}, {T}: Create a 0/1 red Kobold creature token named Kobolds of Kher Keep.

({T}: Add {R}.)

({T}: Add {U}.) This land enters tapped unless you control three or more other Islands. When this land enters untapped, you may put target instant or sorcery card from your graveyard on top of your library.

{T}: Add {C}. {1}, {T}: Move a counter from target permanent you control onto another target permanent. Activate only as a sorcery.

{T}: Add {C}. {T}, Sacrifice this land: Search your library for a basic Island, Mountain, or Plains card, put it onto the battlefield tapped, then shuffle. Cycling {U}{R}{W} ({U}{R}{W}, Discard this card: Draw a card.)

{T}: Add {C}. {1}, {T}, Sacrifice an artifact: You gain 1 life.

({T}: Add {W}.)

({T}: Add {W} or {U}.) This land enters tapped unless you control two or more basic lands.

This land enters tapped. Indestructible {T}: Add {W} or {U}.

This land enters tapped. Indestructible {T}: Add {R} or {W}.

This land enters tapped. Indestructible {T}: Add {U} or {R}.

{T}: Add {C}. {T}, Pay 1 life: Add one mana of any color. Activate only if you control an artifact.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Choose target spell. You get {E}{E} (two energy counters), then you may pay any amount of {E}. Counter that spell unless its controller pays {1} for each {E} paid this way.

Flying At the beginning of your upkeep, you get {E}{E}{E} (three energy counters). Pay eight {E}: Return all other creatures to their owners' hands. Activate only as a sorcery.

Choose two — • Destroy all artifacts. • Destroy all enchantments. • Destroy all creatures with mana value 3 or less. • Destroy all creatures with mana value 4 or greater.

This spell costs {1} less to cast for each {E} (energy counter) you've paid or lost this turn. Haste Whenever this creature attacks, you get {E}{E}, then you may pay eight {E}. When you do, this creature deals 8 damage divided as you choose among up to eight targets.

Choose target artifact or creature. You get {E}{E}{E}{E} (four energy counters), then you may pay an amount of {E} equal to that permanent's mana value. If you do, gain control of it.

Destroy all creatures.

Tap target creature. Metalcraft — If you control three or more artifacts, exile that creature.

Counter target spell. You get an amount of {E} (energy counters) equal to its mana value.

Choose target spell, then flip a coin. If you win the flip, gain control of that spell and you may choose new targets for it. If you lose the flip, counter that spell.

Counter target spell. Ionize deals 2 damage to that spell's controller.

You get {E} (an energy counter), then you may pay one or more {E}. If you do, each creature you control with power equal to the amount of {E} paid this way gains indestructible until end of turn. Destroy all creatures.

Whenever one or more +1/+1 counters are put on a permanent you control, you may pay {1}. If you do, create a 1/1 colorless Servo artifact creature token. {3}, {T}: Choose a counter on target permanent or player. Give that permanent or player another counter of that kind.

Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying.

Haste Lieutenant — At the beginning of combat on your turn, if you control your commander, create a 1/1 colorless Thopter artifact creature token with flying. That token gains haste until end of turn.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) When this creature enters, create two 1/1 colorless Thopter artifact creature tokens with flying.

When Pia and Kiran Nalaar enters, create two 1/1 colorless Thopter artifact creature tokens with flying. {2}{R}, Sacrifice an artifact: Pia and Kiran Nalaar deals 2 damage to any target.

When this creature enters, create two 1/1 colorless Thopter artifact creature tokens with flying. Tap two untapped artifacts you control: Target creature can't be blocked this turn.

Whenever a creature you control deals combat damage to a player, you may draw a card. {1}{U}, {T}: Creatures your opponents control attack this turn if able.

Scry 2, then draw two cards. You get {E}{E} (two energy counters).

Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn. Untap those creatures. Whenever you cast a noncreature spell, you may draw a card. If you do, discard a card.

Vigilance, trample, haste Whenever Liberty Prime attacks or blocks, sacrifice it unless you pay {E}{E} (two energy counters). {2}, {T}, Sacrifice an artifact: You get {E}{E} and draw a card.

Whenever one or more artifact creatures you control die, draw a card. This ability triggers only once each turn. {2}{W}, {T}: Create a 1/1 colorless Thopter artifact creature token with flying.

At the beginning of your upkeep, if you control an artifact, create a 1/1 colorless Thopter artifact creature token with flying. Whenever one or more artifact creatures you control deal combat damage to a player, draw a card.

When this creature enters, you get {E}{E} (two energy counters). Whenever an artifact creature you control attacks, you may pay {E}. If you do, put your choice of a +1/+1, first strike, or trample counter on that creature.

Metalcraft — {T}: You get {E} (an energy counter). Activate only if you control three or more artifacts. Whenever you get one or more {E} during your turn, creatures you control get +1/+1 until end of turn.

Whenever you get one or more {E} (energy counters), put a +1/+1 counter on target creature you control. {4}, {T}: You get {E}.