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.

First strike When this creature enters, you get {E}{E} (two energy counters). Then if you cast it from your hand, exile cards from the top of your library until you exile a nonland card. You may cast that card by paying an amount of {E} equal to its mana value rather than paying its mana cost.

Flying When this creature enters, target creature gets +1/+1 and gains flying until end of turn.

Whenever this creature deals combat damage to a player, you get that many {E}. At the beginning of combat on your turn, you may pay {E}{E}. When you do, this creature becomes a copy of another target creature you control, except it has this ability and "Whenever this creature deals combat damage to a player, you get that many {E}."

At the beginning of combat on your turn, you may pay {E}{E}{E}. If you do, put a +1/+1 counter on this creature. Whenever this creature attacks, double its power until end of turn. Whenever this creature deals combat damage to a creature, if that creature was dealt excess damage this turn, you get X {E}, where X is that excess damage.

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

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

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

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

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

{T}, Pay 1 life, Sacrifice this land: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

{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 {U}.)

({T}: Add {R}.)

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

({T}: Add {W}.)

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.

When this creature enters, you get {E}{E}{E} (three energy counters). Pay {E}{E}: Put an exalted counter on target creature you control. Activate only as a sorcery. (Whenever a creature you control attacks alone, it gets +1/+1 until end of turn for each instance of exalted among permanents you control.)

Whenever this creature or equipped creature attacks, you get {E} (an energy counter), then it gets +X/+X until end of turn, where X is the amount of {E} you have. Reconfigure—Pay {2} or {E}{E}{E}. (Pay {2} or {E}{E}{E}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Creature tokens you control get +1/+1 and have vigilance.

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.

Vigilance, lifelink When Aragorn enters, you become the monarch. Whenever Aragorn attacks, up to one target creature can't block this turn. If you're the monarch, creatures can't block this turn.

Draw three cards, then put two cards from your hand on top of your library in any order.

Whenever you cast an artifact spell, you get {E} (an energy counter). {T}, Pay {E}: Target creature gets +1/+0 and gains trample and haste until end of turn. {T}, Pay {E}{E}{E}: Draw a card. {T}, Pay {E}{E}{E}{E}{E}: Return target artifact card from your graveyard to the battlefield tapped.

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.

Flying Whenever a player casts their second spell each turn, this creature connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

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 an opponent casts a spell, you may draw a card unless that player pays {1}.

Flying, lifelink Whenever you gain life, you get that many {E} (energy counters). {W}{U}{U}, {T}, Pay X {E}: Draw X cards.

When this creature enters, you get {E}{E} (two energy counters). {T}, Pay {E}: Draw a card, then discard a card.

Indestructible When The One Ring enters, if you cast it, you gain protection from everything until your next turn. At the beginning of your upkeep, you lose 1 life for each burden counter on The One Ring. {T}: Put a burden counter on The One Ring, then draw a card for each burden counter on The One Ring.

Draw a card. You get {E}{E} (two energy counters).

When this artifact enters, you get {E}{E} (two energy counters). Whenever you cast a spell from anywhere other than your hand, this artifact deals 1 damage to each opponent. {T}, Pay {E}{E}: Exile the top card of your library. You may play it until you exile another card with this artifact.

Whenever another creature you control enters, you gain 1 life and get {E} (an energy counter). Whenever you attack, you may pay {E}{E}{E}. When you do, put two +1/+1 counters and a flying counter on target attacking creature. It becomes an Angel in addition to its other types.

{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.

Choose one. If you control a commander as you cast this spell, you may choose both instead. • Add {R} for each card in target opponent's hand. • Exile the top three cards of your library. You may play them this turn.

Add {R} for each tapped land your opponents control.

Menace Whenever one or more creatures you control deal combat damage to a player, create a Treasure token. Sacrifice a Treasure: Exile the top card of your library. You may play that card this turn.

{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 {U} or {R}. This artifact deals 1 damage to you.

Choose up to one target artifact or creature card in your graveyard. You get {E}{E} (two energy counters). Then you may pay an amount of {E} equal to that card's mana value. If you do, return it from your graveyard to the battlefield. Cycling {2} ({2}, Discard this card: Draw a card.)

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 When this creature enters, exile up to two target artifacts and/or enchantments. Plainscycling {2} ({2}, Discard this card: Search your library for a Plains card, reveal it, put it into your hand, then shuffle.)

Trample When this creature enters, you get {E}{E}{E}{E} (four energy counters). When this creature dies, you may pay an amount of {E} equal to target nonland permanent's mana value. When you do, destroy that permanent.

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.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Counter target spell.

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

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

Choose target creature or planeswalker. You get {E}{E}{E} (three energy counters), then you may pay any amount of {E}. Galvanic Discharge deals that much damage to that permanent.

Exile target creature. Its controller gains life equal to its power.

Flying, hexproof from activated and triggered abilities When this creature enters, exchange control of this creature and target creature an opponent controls. If you do, you get {E}{E}{E}{E}, then sacrifice that creature unless you pay an amount of {E} equal to its mana value.

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.

Spree (Choose one or more additional costs.) + {2}{R} — Untap all creatures you control. If it's your combat phase, there is an additional combat phase after this phase. + {2} — Creatures you control get +1/+0 and gain first strike until end of turn. + {R} — Choose target opponent. Whenever a creature you control deals combat damage to that player this turn, create a tapped Treasure token.

When this creature enters, target creature you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)