Commander creatures you own have "At the beginning of your end step, exile up to one target tapped creature you control, then return it to the battlefield under its owner's control."

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

({T}: Add {R} or {W}.) Alpine Meadow enters the battlefield tapped.

As Ancient Amphitheater enters the battlefield, you may reveal a Giant card from your hand. If you don't, Ancient Amphitheater enters the battlefield tapped. {T}: Add {R} or {W}.

Azorius Chancery enters the battlefield tapped. When Azorius Chancery enters the battlefield, return a land you control to its owner's hand. {T}: Add {W}{U}.

Azorius Guildgate enters the battlefield tapped. {T}: Add {W} or {U}.

Boreal Shelf enters the battlefield tapped. {T}: Add {W} or {U}.

Boros Garrison enters the battlefield tapped. When Boros Garrison enters the battlefield, return a land you control to its owner's hand. {T}: Add {R}{W}.

As Frostboil Snarl enters the battlefield, you may reveal an Island or Mountain card from your hand. If you don't, Frostboil Snarl enters the battlefield tapped. {T}: Add {U} or {R}.

As Furycalm Snarl enters the battlefield, you may reveal a Mountain or Plains card from your hand. If you don't, Furycalm Snarl enters the battlefield tapped. {T}: Add {R} or {W}.

({T}: Add {W} or {U}.) Glacial Floodplain enters the battlefield tapped.

Hall enters the battlefield tapped. {T}: Add {R} or {W}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Highland Lake enters the battlefield tapped. {T}: Add {U} or {R}.

({T}: Add {W} or {U}.) Irrigated Farmland enters the battlefield tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

Izzet Boilerworks enters the battlefield tapped. When Izzet Boilerworks enters the battlefield, return a land you control to its owner's hand. {T}: Add {U}{R}.

Izzet Guildgate enters the battlefield tapped. {T}: Add {U} or {R}.

Library enters the battlefield tapped. {T}: Add {U} or {R}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Lorehold Campus enters the battlefield tapped. {T}: Add {R} or {W}. {4}, {T}: Scry 1.

Meandering River enters the battlefield tapped. {T}: Add {W} or {U}.

({T}: Add {U} or {R}.) Molten Tributary enters the battlefield tapped.

Mystic Monastery enters the battlefield tapped. {T}: Add {U}, {R}, or {W}.

Needle Spires enters the battlefield tapped. {T}: Add {R} or {W}. {2}{R}{W}: Needle Spires becomes a 2/1 red and white Elemental creature with double strike until end of turn. It's still a land.

({T}: Add {W} or {U}.) Prairie Stream enters the battlefield tapped unless you control two or more basic lands.

Prismari Campus enters the battlefield tapped. {T}: Add {U} or {R}. {4}, {T}: Scry 1.

Razortide Bridge enters the battlefield tapped. Indestructible {T}: Add {W} or {U}.

Restless Bivouac enters the battlefield tapped. {T}: Add {R} or {W}. {1}{R}{W}: Restless Bivouac becomes a 2/2 red and white Ox creature until end of turn. It's still a land. Whenever Restless Bivouac attacks, put a +1/+1 counter on target creature you control.

Restless Spire enters the battlefield tapped. {T}: Add {U} or {R}. {U}{R}: Until end of turn, Restless Spire becomes a 2/1 blue and red Elemental creature with "As long as it's your turn, this creature has first strike." It's still a land. Whenever Restless Spire attacks, scry 1.

Rustvale Bridge enters the battlefield tapped. Indestructible {T}: Add {R} or {W}.

({T}: Add {R} or {W}.) Sacred Peaks enters the battlefield tapped.

Sejiri Refuge enters the battlefield tapped. When Sejiri Refuge enters the battlefield, you gain 1 life. {T}: Add {W} or {U}.

Silverbluff Bridge enters the battlefield tapped. Indestructible {T}: Add {U} or {R}.

Skybridge Towers enters the battlefield tapped. {T}: Add {W} or {U}. {2}{W}{U}, {T}, Sacrifice Skybridge Towers: Draw a card.

Stone Quarry enters the battlefield tapped. {T}: Add {R} or {W}.

Study enters the battlefield tapped. {T}: Add {W} or {U}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Swiftwater Cliffs enters the battlefield tapped. When Swiftwater Cliffs enters the battlefield, you gain 1 life. {T}: Add {U} or {R}.

Temple of Enlightenment enters the battlefield tapped. When Temple of Enlightenment enters the battlefield, scry 1. {T}: Add {W} or {U}.

Temple of Epiphany enters the battlefield tapped. When Temple of Epiphany enters the battlefield, scry 1. {T}: Add {U} or {R}.

Temple of Triumph enters the battlefield tapped. When Temple of Triumph enters the battlefield, scry 1. {T}: Add {R} or {W}.

Tranquil Cove enters the battlefield tapped. When Tranquil Cove enters the battlefield, you gain 1 life. {T}: Add {W} or {U}.

Wandering Fumarole enters the battlefield tapped. {T}: Add {U} or {R}. {2}{U}{R}: Until end of turn, Wandering Fumarole becomes a 1/4 blue and red Elemental creature with "{0}: Switch this creature's power and toughness until end of turn." It's still a land.

First strike When Aether Chaser enters the battlefield, you get {E}{E} (two energy counters). Whenever Aether Chaser attacks, you may pay {E}{E}. If you do, create a 1/1 colorless Servo artifact creature token.

Vigilance When Aether Inspector enters the battlefield, you get {E}{E} (two energy counters). Whenever Aether Inspector attacks, you may pay {E}{E}. If you do, create a 1/1 colorless Servo artifact creature token.

Flash (You may cast this spell any time you could cast an instant.) Enchant creature or Vehicle When Aether Meltdown enters the battlefield, you get {E}{E} (two energy counters). Enchanted creature gets -4/-0.

Flying When Aether Swooper enters the battlefield, you get {E}{E} (two energy counters). Whenever Aether Swooper attacks, you may pay {E}{E}. If you do, create a 1/1 colorless Servo artifact creature token.

When Aether Theorist enters the battlefield, you get {E}{E}{E} (three energy counters). {T}, Pay {E}: Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Whenever Aethergeode Miner attacks, you get {E}{E} (two energy counters). Pay {E}{E}: Exile Aethergeode Miner, then return it to the battlefield under its owner's control.

Flying When Aethersphere Harvester enters the battlefield, you get {E}{E} (two energy counters). Pay {E}: Aethersphere Harvester gains lifelink until end of turn. Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

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

When Aethertorch Renegade enters the battlefield, you get {E}{E}{E}{E} (four energy counters). {T}, Pay {E}{E}: Aethertorch Renegade deals 1 damage to target creature. {T}, Pay {E}{E}{E}{E}{E}{E}{E}{E}: Aethertorch Renegade deals 6 damage to target player or planeswalker.

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.

When Consul's Shieldguard enters the battlefield, you get {E}{E} (two energy counters). Whenever Consul's Shieldguard attacks, you may pay {E}. If you do, another target attacking creature gains indestructible until end of turn.

When Consulate Surveillance enters the battlefield, you get {E}{E}{E}{E} (four energy counters). Pay {E}{E}: Prevent all damage that would be dealt to you this turn by a source of your choice.

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

Deadlock Trap enters the battlefield tapped. When Deadlock Trap enters the battlefield, you get {E}{E} (two energy counters). {T}, Pay {E}: Tap target creature or planeswalker. Its activated abilities can't be activated this turn.

Whenever an artifact or Artificer enters the battlefield under your control, you may pay {1}. If you do, you get {E}{E} (two energy counters). Pay {E}{E}{E}{E}{E}{E}, Sacrifice Era of Innovation: Draw three cards.

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

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

Choose target creature. You get {E}{E}{E} (three energy counters), then you may pay any amount of {E}. Harnessed Lightning deals that much damage to that creature.

When Janjeet Sentry enters the battlefield, you get {E}{E} (two energy counters). {T}, Pay {E}{E}: You may tap or untap target artifact or creature.

Double strike, haste Whenever Lightning Runner attacks, you get {E}{E} (two energy counters), then you may pay {E}{E}{E}{E}{E}{E}{E}{E}. If you pay, untap all creatures you control, and after this phase, there is an additional combat phase.

When Maulfist Doorbuster enters the battlefield, you get {E}{E} (two energy counters). Whenever Maulfist Doorbuster attacks, you may pay {E}. If you do, target creature can't block this turn.

When Minister of Inquiries enters the battlefield, you get {E}{E} (two energy counters). {T}, Pay {E}: Target player mills three cards.

When Reservoir Walker enters the battlefield, you gain 3 life and get {E}{E}{E} (three energy counters).

Whenever Rex, Cyber-Hound deals combat damage to a player, they mill two cards and you get {E}{E} (two energy counters). Pay {E}{E}: Choose target creature card in a graveyard. Exile it with a brain counter on it. Activate only as a sorcery. Rex has all activated abilities of all cards in exile with brain counters on them.

Double strike (This creature deals both first-strike and regular combat damage.) When Scrapper Champion enters the battlefield, you get {E}{E} (two energy counters). Whenever Scrapper Champion attacks, you may pay {E}{E}. If you do, put a +1/+1 counter on it.

Flash (You may cast this spell any time you could cast an instant.) Whenever Shielded Aether Thief blocks, you get {E} (an energy counter). {T}, Pay {E}{E}{E}: Draw a card.

When Shipwreck Moray enters the battlefield, you get {E}{E}{E}{E} (four energy counters). Pay {E}: Shipwreck Moray gets +2/-2 until end of turn.

When Spontaneous Artist enters the battlefield, you get {E} (an energy counter). Pay {E}: Target creature gains haste until end of turn.

Trample Whenever you get one or more {E} (energy counters), Territorial Gorger gets +2/+2 until end of turn.

When Thriving Grubs enters the battlefield, you get {E}{E} (two energy counters). Whenever Thriving Grubs attacks, you may pay {E}{E}. If you do, put a +1/+1 counter on it.

When Thriving Ibex enters the battlefield, you get {E}{E} (two energy counters). Whenever Thriving Ibex attacks, you may pay {E}{E}. If you do, put a +1/+1 counter on it.

When Thriving Turtle enters the battlefield, you get {E}{E} (two energy counters). Whenever Thriving Turtle attacks, you may pay {E}{E}. If you do, put a +1/+1 counter on it.