Draw cards equal to the number of cards in your hand, then discard a card for each card drawn this way.

Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

{T}, Remove X +1/+1 counters from Arcbound Javelineer: It deals X damage to target attacking or blocking creature.

Modular 1 (This creature enters the battlefield with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Modular 2 (This creature enters the battlefield with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

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

Basalt Monolith doesn't untap during your untap step.

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

{3}: Untap Basalt Monolith.

{3}, Sacrifice Burnished Hart: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Flying

Cephalopod Sentry's power is equal to the number of artifacts you control.

Target opponent reveals their hand. You choose a nonland card from it. Exile that card. If an instant card or a card with flash is exiled this way, they lose 1 life. Otherwise, you lose 1 life.

Other artifact creatures you control get +1/+1.

{T}: Add {C}.

{T}, Sacrifice Command Beacon: Put your commander into your hand from the command zone.

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

Sacrifice Commander's Sphere: Draw a card.

Deadeye Plunderers gets +1/+1 for each artifact you control.

{2}{U}{B}: Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Target opponent reveals their hand. You choose a creature or planeswalker card from it. That player discards that card.

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

Enchant creature

Shroud (A permanent with shroud can't be the target of spells or abilities.)

Enchanted creature has shroud.

Dismal Backwater enters the battlefield tapped.

When Dismal Backwater enters the battlefield, you gain 1 life.

{T}: Add {U} or {B}.

Tap target creature.

Metalcraft -- If you control three or more artifacts, exile that creature.

Equipped creature has "Whenever you draw a card, this creature gets +1/+1 and gains flying until end of turn" and "{4}: Draw a card."

Whenever a Wizard creature enters the battlefield, you may attach Diviner's Wand to it.

Equip {3}

This spell can't be countered.

Counter target noncreature spell.

When Dromar's Cavern enters the battlefield, sacrifice it unless you return a non-Lair land you control to its owner's hand.

{T}: Add {W}, {U}, or {B}.

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

Soulbond (You may pair this creature with another unpaired creature when either enters the battlefield. They remain paired for as long as you control both of them.)

As long as Elgaud Shieldmate is paired with another creature, both creatures have hexproof. (They can't be the targets of spells or abilities your opponents control.)

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

{T}, Sacrifice Evolving Wilds: 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.

Ninjutsu {2}{U}{B} ({2}{U}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Fallen Shinobi deals combat damage to a player, that player exiles the top two cards of their library. Until end of turn, you may play those cards without paying their mana costs.

Forsaken Sanctuary enters the battlefield tapped.

{T}: Add {W} or {B}.

Menace

{1}{B}, {T}, Pay 1 life: Create a Treasure token.

{2}{B}: Target creature gets +2/+0 until end of turn. If mana from a Treasure was spent to activate this ability, that creature also gains deathtouch until end of turn.

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

Gates of Istfell enters the battlefield tapped.

{T}: Add {W}.

{2}{W}{U}{U}, {T}, Sacrifice Gates of Istfell: You gain 2 life and draw two cards.

Destroy target nonartifact creature.

Goldmire Bridge enters the battlefield tapped.

Indestructible

{T}: Add {W} or {B}.

{2}: Target artifact creature gets +1/+1 until end of turn.

{2}: Target artifact creature gains your choice of flying, trample, or haste until end of turn.

Other blue creatures you control get +1/+1.

{U}: Target artifact creature becomes blue until end of turn.

Tap an untapped blue creature you control: Add {C}{C}. Spend this mana only to cast artifact spells or activate abilities of artifacts.

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

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

Jwar Isle Refuge enters the battlefield tapped.

When Jwar Isle Refuge enters the battlefield, you gain 1 life.

{T}: Add {U} or {B}.

{T}: Add {C}.

{T}: Target nonland permanent becomes an artifact in addition to its other types until end of turn.

{5}, Exile Mechtitan Core and four other artifact creatures and/or Vehicles you control: Create Mechtitan, a legendary 10/10 Construct artifact creature token with flying, vigilance, trample, lifelink, and haste that's all colors. When that token leaves the battlefield, return all cards exiled with Mechtitan Core except Mechtitan Core to the battlefield tapped under their owners' control.

Crew 2

When Meteor Golem enters the battlefield, destroy target nonland permanent an opponent controls.

{T}: Add {C}.

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

{T}: Add {C}.

{1}: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.

{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Mistvault Bridge enters the battlefield tapped.

Indestructible

{T}: Add {U} or {B}.

Flash

Lifelink

When Obscura Interceptor enters the battlefield, it connives. When it connives this way, return up to one target spell to its owner's hand. (To have a creature connive, draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.)

{2}, {T}: Exile the top card of your library. Until end of turn, you may play that card. Put a brick counter on Oracle's Vault.

{T}: Exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Activate only if there are three or more brick counters on Oracle's Vault.

Flying

Orzhov Guildgate enters the battlefield tapped.

{T}: Add {W} or {B}.

{1}, {T}: Add {W}{B}.

Path of Ancestry enters the battlefield tapped.

{T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Flying

When Pilgrim's Eye enters the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Flying

{2}, {Q}: Add one mana of any color. ({Q} is the untap symbol.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

Razortide Bridge enters the battlefield tapped.

Indestructible

{T}: Add {W} or {U}.

Exile target creature. Its controller manifests the top card of their library. (That player puts the top card of their library onto the battlefield face down as a 2/2 creature. If it's a creature card, it can be turned face up any time for its mana cost.)

When Restoration Gearsmith enters the battlefield, return target artifact or creature card from your graveyard to your hand.

Rupture Spire enters the battlefield tapped.

When Rupture Spire enters the battlefield, sacrifice it unless you pay {1}.

{T}: Add one mana of any color.

{T}, Sacrifice an artifact: Draw a card.

Flying

When Sandstone Oracle enters the battlefield, choose an opponent. If that player has more cards in hand than you, draw cards equal to the difference.

Secluded Steppe enters the battlefield tapped.

{T}: Add {W}.

Cycling {W} ({W}, Discard this card: Draw a card.)

At the beginning of your upkeep, choose target opponent. This turn, that player can't cast spells or activate abilities and plays with their hand revealed. You may play lands and cast spells from that player's hand this turn.

Flying, vigilance

Flying

Whenever an artifact creature you control deals combat damage to a player, you may create a 1/1 blue Thopter artifact creature token with flying.

Flying

When Sharuum the Hegemon enters the battlefield, you may return target artifact card from your graveyard to the battlefield.

Deathtouch

Whenever Silas Renn, Seeker Adept deals combat damage to a player, choose target artifact card in your graveyard. You may cast that card this turn.

Partner (You can have two commanders if both have partner.)

Skybridge Towers enters the battlefield tapped.

{T}: Add {W} or {U}.

{2}{W}{U}, {T}, Sacrifice Skybridge Towers: Draw a card.

Flying

When Skyscanner enters the battlefield, draw a card.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)

Whenever a nontoken artifact you control is put into a graveyard from the battlefield, create a 1/1 colorless Servo artifact creature token.

{T}: Add {C}.

{6}: Stalking Stones becomes a 3/3 Elemental artifact creature that's still a land. (This effect lasts indefinitely.)

Choose one or more --

• Counter target spell.

• Counter target activated or triggered ability.

• Return target nonland permanent to its owner's hand.

• Create a token that's a copy of target creature you control.

• Target player draws a card.

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)

Equip {1}

{T}: Put an oil counter on Tablet of Compleation.

{T}: Add {C}. Activate only if Tablet of Compleation has two or more oil counters on it.

{1}, {T}: Draw a card. Activate only if Tablet of Compleation has five or more oil counters on it.

Your opponents play with their hands revealed.

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

Enchant artifact

Enchanted artifact is a creature with base power and toughness 5/5 in addition to its other types.

When enchanted artifact is put into a graveyard, return that card to its owner's hand.

When Threefold Signal enters the battlefield, scry 3.

Each spell you cast that's exactly three colors has replicate {3}. (When you cast it, copy it for each time you paid its replicate cost. You may choose new targets for the copies. A copy of a permanent spell becomes a token.)

Tranquil Cove enters the battlefield tapped.

When Tranquil Cove enters the battlefield, you gain 1 life.

{T}: Add {W} or {U}.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)

Draw three cards.

{T}: Add {C}.

{X}{X}, {T}, Sacrifice Treasure Vault: Create X Treasure tokens.

When Trophy Mage enters the battlefield, you may search your library for an artifact card with mana value 3, reveal it, put it into your hand, then shuffle.

{7}, {T}, Sacrifice Universal Solvent: Destroy target permanent.

Flying

Whenever you cast a spell from anywhere other than your hand, draw a card.

This spell can't be countered.

Destroy target nonland permanent.

At the beginning of your end step, untap target artifact.

Equipped creature can't be blocked and has shroud. (It can't be the target of spells or abilities.)

Equip {2}

When Workshop Assistant dies, return another target artifact card from your graveyard to your hand.

Worn Powerstone enters the battlefield tapped.

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