As an additional cost to cast this spell, you may collect evidence 6. (Exile cards with total mana value 6 or greater from your graveyard.) Until end of turn, target artifact or creature becomes an artifact creature with base power and toughness 4/3. If evidence was collected, it has base power and toughness 1/1 until end of turn instead.

Target creature has base power and toughness 5/5 until end of turn. The Ring tempts you.

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

Until end of turn, target creature becomes a Dragon with base power and toughness 4/4 and gains flying. (It loses all other creature types.)

Until end of turn, target artifact or creature becomes a Dinosaur artifact creature with base power and toughness 4/3 in addition to its other types.

Until end of turn, target creature becomes a blue Serpent with base power and toughness 5/5.

When Skilled Animator enters the battlefield, target artifact you control becomes an artifact creature with base power and toughness 5/5 for as long as Skilled Animator remains on the battlefield.

Until end of turn, target creature becomes a blue Serpent with base power and toughness 4/4. Cycling {1} ({1}, Discard this card: Draw a card.)

Until end of turn, target creature or Vehicle becomes an artifact creature with base power and toughness 4/5. Draw a card.

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) When Unctus's Retrofitter enters the battlefield, up to one target artifact you control becomes an artifact creature with base power and toughness 4/4 for as long as Unctus's Retrofitter remains on the battlefield.

Until end of turn, target creature you control has base power and toughness 4/4 and gains flying and hexproof. (It can't be the target of spells or abilities your opponents control.)

Changeling (This card is every creature type.) Until end of turn, target creature has base power and toughness 4/4, gains all creature types, and gains flying.

Target creature has base power and toughness 4/3 until end of turn. Draw a card.

Enchant creature Enchanted creature has "Whenever this creature deals combat damage to a player, draw a card." As long as enchanted creature is legendary, it gets +1/+1 and has ward {1}. (Whenever enchanted creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.)

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.)

Draw two cards, then discard two cards. Untap up to three lands.

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

Indestructible {T}: Add {C}.

({T}: Add {U}.)

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

Put a +1/+1 counter on target creature. It phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.)

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

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

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

Flash When Misleading Signpost enters the battlefield during the declare attackers step, you may reselect which player or permanent target attacking creature is attacking. (It can't attack its controller or their permanents.) {T}: Add {U}.

Flying {T}: Add one mana of any color.

When Scampering Surveyor enters the battlefield, search your library for a basic land card or Cave card, put it onto the battlefield tapped, then shuffle.

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

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

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

When Archaeomancer enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

Return target instant or sorcery card from your graveyard to your hand.

Return target instant or sorcery card from your graveyard to your hand. Exile Flood of Recollection.

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

Copy target instant or sorcery spell, then return it to its owner's hand. You may choose new targets for the copy.

Return all attacking creatures to their owner's hand.

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep. You draw a card at the beginning of the next turn's upkeep.

Counter target spell.

{T}: Add {U}. Channel — {3}{U}, Discard Otawara, Soaring City: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.

Destroy target creature. It can't be regenerated. Its controller creates a 3/3 green Ape creature token.

Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token.

Flash This spell costs {1} less to cast for each attacking creature. Trample When Ancient Stone Idol dies, create a 6/12 colorless Construct artifact creature token with trample.

Indestructible Darksteel Juggernaut's power and toughness are each equal to the number of artifacts you control. Darksteel Juggernaut attacks each combat if able.

Flying Filigree Attendant's power is equal to the number of artifacts you control.

Karn, Legacy Reforged's power and toughness are each equal to the greatest mana value among artifacts you control. At the beginning of your upkeep, add {C} for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.

Master of Etherium's power and toughness are each equal to the number of artifacts you control. Other artifact creatures you control get +1/+1.

This spell costs {X} less to cast, where X is the total mana value of noncreature artifacts you control. Sacrifice two artifacts: Return Metalwork Colossus from your graveyard to your hand.

Nick Valentine, Private Eye can't be blocked except by artifact creatures. Whenever Nick Valentine or another artifact creature you control dies, you may investigate. (To investigate, create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Trample When Phyrexian Dreadnought enters the battlefield, sacrifice it unless you sacrifice any number of creatures with total power 12 or greater.

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life.

Robobrain War Mind's power is equal to the number of cards in your hand. When Robobrain War Mind enters the battlefield, you get an amount of {E} (energy counters) equal to the number of artifact creatures you control. Whenever Robobrain War Mind attacks, you may pay {E}{E}{E}. If you do, draw a card.

Shambling Suit's power is equal to the number of artifacts and/or enchantments you control.

{T}: Add {C}. {3}, {T}: Target creature with power 3 or less can't be blocked this turn.

Enchant creature Enchanted creature can't be blocked. Whenever enchanted creature attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Negative — As long as K-9, Mark I is untapped, other legendary creatures you control have ward {1}. Affirmative — {1}{U}, {T}: Target legendary creature can't be blocked this turn. Doctor's companion (You can have two commanders if the other is the Doctor.)

X target creatures can't be blocked this turn. Until end of turn, those creatures gain "Whenever this creature deals combat damage to a player, draw a card."

Equipped creature can't be blocked except by Walls. Equip {2}

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

Flash When Silver Shroud Costume enters the battlefield, attach it to target creature you control. That creature gains shroud until end of turn. (It can't be the target of spells or abilities.) Equipped creature can't be blocked. Equip {3}

Devoid (This card has no color.) Target creature can't be blocked this turn. Draw a card.

Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, this creature can't be blocked this turn."

Equipped creature has nonbasic landwalk. (It can't be blocked as long as defending player controls a nonbasic land.) Equip {2}

Whenever you draw your second card each turn, create a 2/2 blue Drake creature token with flying. Whenever you draw your fifth card each turn, Alandra, Sky Dreamer and Drakes you control each get +X/+X until end of turn, where X is the number of cards in your hand.

Target creature can't be blocked this turn. Flashback {U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Trample, infect, indestructible If Blightsteel Colossus would be put into a graveyard from anywhere, reveal Blightsteel Colossus and shuffle it into its owner's library instead.

Trample When you cast this spell and whenever Cityscape Leveler attacks, destroy up to one target nonland permanent. Its controller creates a tapped Powerstone token. Unearth {8}

You have no maximum hand size. {T}: Add one mana of any color.

Trample Islandwalk (This creature can't be blocked as long as defending player controls an Island.) Shroud (This creature can't be the target of spells or abilities.)

{1}, {T}: Untap another target artifact. {3}, {T}: Target creature can't be blocked this turn.

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

Whenever you draw your second card each turn, create a 1/1 blue Illusion creature token with "This creature gets +1/+0 for each other Illusion you control." Whenever an Illusion you control dies, you may put a permanent card with mana value less than or equal to that creature's power from your hand onto the battlefield.

Look at the top three cards of your library, then put them back in any order. You may shuffle. Draw a card.

{T}: Add one mana of any color. {1}, {T}: Untap another target artifact. {2}, {T}: Scry 1. (Look at the top card of your library. You may put that card on the bottom.) {3}, {T}: Target creature can't be blocked this turn.

Indestructible As long as your devotion to blue is less than five, Thassa isn't a creature. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.) At the beginning of your upkeep, scry 1. {1}{U}: Target creature you control can't be blocked this turn.

Affinity for artifacts Flying When Thought Monitor enters the battlefield, draw two cards.