Aeon Engine enters the battlefield tapped. {T}, Exile Aeon Engine: Reverse the game's turn order. (For example, if play had proceeded clockwise around the table, it now goes counterclockwise.)

Whenever Fathom Fleet Swordjack attacks, it deals damage to the player or planeswalker it's attacking equal to the number of artifacts you control. Encore {5}{R} ({5}{R}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Whenever a creature enters the battlefield under your control, Impact Tremors deals 1 damage to each opponent.

+1: Create two 3/1 red Elemental creature tokens with haste. Exile them at the beginning of the next end step. 0: Discard all the cards in your hand, then draw that many cards plus one. −X: Chandra, Flamecaller deals X damage to each creature.

Whenever Etali, Primal Storm attacks, exile the top card of each player's library, then you may cast any number of spells from among those cards without paying their mana costs.

Commander spells you cast have cascade. (Whenever you cast a commander, exile cards from the top of your library until you exile a nonland card with lesser mana value. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)

Equipped creature gets +3/+1. Whenever equipped creature dies, you may reveal cards from the top of your library until you reveal a creature card that shares a creature type with it. Put that card into your hand and the rest on the bottom of your library in a random order. Equip {1}

{T}: Draw two cards. Target opponent gains control of Humble Defector. Activate only during your turn.

When Ichor Wellspring enters the battlefield or is put into a graveyard from the battlefield, draw a card.

Exile the top three cards of your library. Until the end of your next turn, you may play those cards. If this spell was cast from a graveyard, you may play cards this way without paying their mana costs. Flashback {7}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Investigator's Journal enters the battlefield with a number of suspect counters on it equal to the greatest number of creatures a player controls. {2}, {T}, Remove a suspect counter from Investigator's Journal: Draw a card. {2}, Sacrifice Investigator's Journal: Draw a card.

Haste Whenever Laelia, the Blade Reforged attacks, exile the top card of your library. You may play that card this turn. Whenever one or more cards are put into exile from your library and/or your graveyard, put a +1/+1 counter on Laelia.

You may look at the top card of your library any time. You may cast artifact spells and colorless spells from the top of your library. {T}, Pay 1 life: Exile the top card of your library.

Equipped creature gets +2/+2. Whenever Ogre-Head Helm or equipped creature deals combat damage to a player, you may sacrifice it. If you do, discard your hand, then draw three cards. Reconfigure {3} ({3}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

As Outpost Siege enters the battlefield, choose Khans or Dragons. • Khans — At the beginning of your upkeep, exile the top card of your library. Until end of turn, you may play that card. • Dragons — Whenever a creature you control leaves the battlefield, Outpost Siege deals 1 damage to any target.

Improvise (Each artifact you tap after you're done activating mana abilities pays for {1}.) Reveal the top X cards of your library. You may put any number of artifact cards with mana value X or less from among them onto the battlefield. Then put all cards revealed this way that weren't put onto the battlefield into your graveyard.

Enchant creature Enchanted creature has haste and "At the beginning of your upkeep, destroy this creature. Reveal cards from the top of your library until you reveal a creature card. Put that card onto the battlefield and attach Shifting Shadow to it, then put all other cards revealed this way on the bottom of your library in a random order."

Flying Whenever Smuggler's Copter attacks or blocks, you may draw a card. If you do, discard a card. 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.)

Haste At the beginning of your upkeep, exile the top card of your library. You may play it this turn. At the beginning of each opponent's upkeep, the next time they would draw a card this turn, instead they exile the top card of their library. They may play it this turn.

({T}: Add {R}.) Dwarven Mine enters the battlefield tapped unless you control three or more other Mountains. When Dwarven Mine enters the battlefield untapped, create a 1/1 red Dwarf creature token.

({T}: Add {R}.)

Menace Goaded creatures your opponents control can't block. Whenever you cast a noncreature spell, goad target creature an opponent controls. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

As Sanctuary Blade becomes attached to a creature, choose a color. Equipped creature gets +2/+0 and has protection from the last chosen color. Equip {3}

Flash You may cast artifact spells as though they had flash.

Equipped creature gets +1/+1 for each land you control. Equip legendary creature {3} Equip {7}

Living weapon (When this Equipment enters the battlefield, create a 0/0 black Phyrexian Germ creature token, then attach this to it.) Equipped creature gets +X/+X, where X is the number of creature cards in all graveyards. Equip {2}

Equipped creature has double strike. (It deals both first-strike and regular combat damage.) Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Equipped creature gets +3/+0. As long as equipped creature is legendary, it has menace. (It can't be blocked except by two or more creatures.) Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Equipped creature gets +3/+2. Whenever a legendary creature enters the battlefield under your control, you may attach Hero's Blade to it. Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery.)

Whenever you cast a noncreature spell, target creature gets +X/+0 until end of turn, where X is that spell's mana value. Choose a Background (You can have a Background as a second commander.)

Whenever equipped creature attacks, look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Artifact spells you cast cost {1} less to cast.

Red creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, you may discard a card. If you do, draw a card.

Flying Historic spells you cast cost {1} less to cast. (Artifacts, legendaries, and Sagas are historic.)

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

{T}: Add {C}. {1}, {T}, Sacrifice Mind Stone: Draw a card.

Pendant of Prosperity enters the battlefield under the control of an opponent of your choice. {2}, {T}: Draw a card, then you may put a land card from your hand onto the battlefield. Pendant of Prosperity's owner draws a card, then that player may put a land card from their hand onto the battlefield.

{T}: Add {C}. {1}, {T}: Add one mana of any color.

{T}, Tap an untapped creature you control: Add one mana of any color.

Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.) Pay 3 life: Add {R}.

When Myr Retriever dies, return another target artifact card from your graveyard to your hand.

Whenever Scrap Trawler or another artifact you control is put into a graveyard from the battlefield, return to your hand target artifact card in your graveyard with lesser mana value.

Flying, haste When you cast your commander, return Skyfire Phoenix from your graveyard to the battlefield.

Equipped creature has deathtouch and lifelink. Equip {2}

This spell costs {1} less to cast for each creature on the battlefield. Blasphemous Act deals 13 damage to each creature.

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.

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

Sacrifice a creature: Add {C}{C}.

Whenever a nontoken modified creature you control dies, create a 1/1 colorless Spirit creature token. (Equipment, Auras you control, and counters are modifications.)

Create two 1/1 red Goblin creature tokens. Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Equipped creature gets +1/+0 and has trample. Equip {1}{R} When Goblin Morningstar enters the battlefield, roll a d20. 1—9 | Create a 1/1 red Goblin creature token. 10—20 | Create a 1/1 red Goblin creature token, then attach Goblin Morningstar to it.