Palladium Myr

Artifact Creature — Myr

Mana Cost: {3}

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

2/2

Commander Masters

Price: $1.34

Silver Myr

Artifact Creature — Myr

Mana Cost: {2}

{T}: Add {U}.

1/1

Neon Dynasty Commander

Price: $0.48

Leaden Myr

Artifact Creature — Myr

Mana Cost: {2}

{T}: Add {B}.

1/1

Scars of Mirrodin

Price: $3.49

Plague Myr

Artifact Creature — Phyrexian Myr

Mana Cost: {2}

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) {T}: Add {C}.

1/1

Duel Decks: Mirrodin Pure vs. New Phyrexia

Hedron Crawler

Artifact Creature — Construct

Mana Cost: {2}

{T}: Add {C}. ({C} represents colorless mana.)

0/1

Oath of the Gatewatch

Price: $0.19

Ultima, Origin of Oblivion

Legendary Creature — God

Mana Cost: {5}

Flying Whenever Ultima attacks, put a blight counter on target land. For as long as that land has a blight counter on it, it loses all land types and abilities and has "{T}: Add {C}." Whenever you tap a land for {C}, add an additional {C}.

4/4

Final Fantasy

Price: $1.13

Manakin

Artifact Creature — Construct

Mana Cost: {2}

{T}: Add {C}.

1/1

Iconic Masters

Price: $0.37

Omen Hawker

Creature — Octopus Advisor

Mana Cost: {U}

{T}: Add {C}{U}. Spend this mana only to activate abilities.

1/1

March of the Machine

Price: $0.14

Magus of the Coffers

Creature — Human Wizard

Mana Cost: {4}{B}

{2}, {T}: Add {B} for each Swamp you control.

4/4

Commander 2014

Price: $4.72

Mm'menon, the Right Hand

Legendary Creature — Jellyfish Advisor

Mana Cost: {3}{U}{U}

Flying You may look at the top card of your library any time. You may cast artifact spells from the top of your library. Artifacts you control have "{T}: Add {U}. Spend this mana only to cast a spell from anywhere other than your hand."

3/4

Edge of Eternities

Price: $0.35

Kozilek's Channeler

Creature — Eldrazi

Mana Cost: {5}

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

4/4

Battle for Zendikar

Price: $0.16

James, Wandering Dad // Follow Him

Legendary Creature — Human Scientist // Instant — Adventure

Mana Cost: {2}{U} // {X}{U}{U}

2/4

Fallout

Price: $0.23

Automated Artificer

Artifact Creature — Artificer

Mana Cost: {2}

{T}: Add {C}. Spend this mana only to activate an ability or cast an artifact spell.

1/3

Kamigawa: Neon Dynasty

Price: $0.21

Apprentice Wizard

Creature — Human Wizard

Mana Cost: {1}{U}{U}

{U}, {T}: Add {C}{C}{C}.

0/1

Double Masters

Price: $0.36

Oaken Siren

Artifact Creature — Siren Pirate

Mana Cost: {1}{U}

Flying, vigilance {T}: Add {U}. Spend this mana only to cast an artifact spell or activate an ability of an artifact source.

1/2

The Lost Caverns of Ixalan

Price: $0.18

Steelswarm Operator

Artifact Creature — Robot Soldier

Mana Cost: {1}{U}

Flying {T}: Add {U}. Spend this mana only to cast an artifact spell. {T}: Add {U}{U}. Spend this mana only to activate abilities of artifact sources.

1/1

Edge of Eternities

Price: $0.08

Guidelight Optimizer

Artifact Creature — Robot

Mana Cost: {1}{U}

{T}: Add {U}. Spend this mana only to cast an artifact spell or activate an ability.

2/1

Aetherdrift

Price: $0.06

Warden of Geometries

Creature — Eldrazi Drone

Mana Cost: {4}

Vigilance {T}: Add {C}. ({C} represents colorless mana.)

2/3

Oath of the Gatewatch

Price: $0.22

Osgood, Operation Double

Legendary Creature — Human Alien Shapeshifter

Mana Cost: {2}{U}{U}

When you cast this spell, create a token that's a copy of it, except it isn't legendary. {T}: Add {C}. Spend this mana only to cast an artifact spell or activate an ability of an artifact. Paradox — Whenever you cast a spell from anywhere other than your hand, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

2/2

Doctor Who

Price: $0.23

Pit Automaton

Artifact Creature — Construct

Mana Cost: {2}

Defender {T}: Add {C}{C}. Spend this mana only to activate abilities. {2}, {T}: When you next activate an exhaust ability that isn't a mana ability this turn, copy it. You may choose new targets for the copy.

0/4

Aetherdrift

Price: $0.13

Hydro-Man, Fluid Felon

Legendary Creature — Elemental Villain

Mana Cost: {U}{U}

Whenever you cast a blue spell, if Hydro-Man is a creature, he gets +1/+1 until end of turn. At the beginning of your end step, untap Hydro-Man. Until your next turn, he becomes a land and gains "{T}: Add {U}." (He's not a creature during that time.)

2/2

Marvel's Spider-Man

Price: $0.33

Volshe Tideturner

Creature — Merfolk Wizard

Mana Cost: {1}{U}

{T}: Add {U}. Spend this mana only to cast an instant or sorcery spell or a kicked spell.

1/3

Dominaria United

Price: $0.15

Karfell Harbinger

Creature — Zombie Wizard

Mana Cost: {1}{U}

{T}: Add {U}. Spend this mana only to foretell a card from your hand or cast an instant or sorcery spell.

1/3

Kaldheim

Price: $0.17

Sea Scryer

Creature — Merfolk Wizard

Mana Cost: {1}{U}

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

1/1

Mirage

Price: $0.17

Renowned Weaponsmith

Creature — Human Artificer

Mana Cost: {1}{U}

{T}: Add {C}{C}. Spend this mana only to cast artifact spells or activate abilities of artifacts. {U}, {T}: Search your library for a card named Heart-Piercer Bow or Vial of Dragonfire, reveal it, put it into your hand, then shuffle.

1/3

Commander Masters

Price: $0.07

Nardole, Resourceful Cyborg

Legendary Artifact Creature — Scientist

Mana Cost: {1}{U}

{T}: Add {U} for each counter on Nardole. Spend this mana only to cast noncreature spells. Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.) Doctor's companion (You can have two commanders if the other is the Doctor.)

1/2

Doctor Who

Price: $0.22

Creeping Peeper

Creature — Eye

Mana Cost: {1}{U}

{T}: Add {U}. Spend this mana only to cast an enchantment spell, unlock a door, or turn a permanent face up.

2/1

Duskmourn: House of Horror

Price: $0.03

Princess Yue

Legendary Creature — Human Noble Ally

Mana Cost: {2}{U}

When Princess Yue dies, if she was a nonland creature, return this card to the battlefield tapped under your control. She's a land named Moon. She gains "{T}: Add {C}." (She's still legendary.) {T}: Scry 2.

3/2

Avatar: The Last Airbender Eternal

Price: $1.11

Tower Worker

Artifact Creature — Assembly-Worker

Mana Cost: {3}

Reach {T}: Add {C}. If you control creatures named Mine Worker and Power Plant Worker, add {C}{C}{C} instead.

1/3

The Brothers' War

Price: $0.20

Vodalian Arcanist

Creature — Merfolk Wizard

Mana Cost: {1}{U}

{T}: Add {C}. Spend this mana only to cast an instant or sorcery spell.

1/3

Core Set 2021

Price: $0.22

Unblinking Observer

Creature — Homunculus

Mana Cost: {1}{U}

{T}: Add {U}. Spend this mana only to pay a disturb cost or cast an instant or sorcery spell.

2/1

Innistrad: Midnight Hunt

Price: $0.08

Cultivator Drone

Creature — Eldrazi Drone

Mana Cost: {2}{U}

Devoid (This card has no color.) {T}: Add {C}. Spend this mana only to cast a colorless spell, activate an ability of a colorless permanent, or pay a cost that contains {C}. ({C} represents colorless mana.)

2/3

Oath of the Gatewatch

Price: $0.08

Sage of the Unknowable

Creature — Human Wizard

Mana Cost: {1}{U}

{T}: Add {C}. Spend this mana only to cast a colorless spell or to activate an ability.

0/4

Modern Horizons 3

Price: $0.08

Witch Engine

Creature — Horror

Mana Cost: {5}{B}

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) {T}: Add {B}{B}{B}{B}. Target opponent gains control of this creature. (Activate only as an instant.)

4/4

Urza's Saga

Price: $0.51

Qarsi Deceiver

Creature — Snake Wizard

Mana Cost: {1}{U}

{T}: Add {C}. Spend this mana only to cast a face-down creature spell, pay a mana cost to turn a manifested creature face up, or pay a morph cost. (A megamorph cost is a morph cost.)

0/4

Dragons of Tarkir

Price: $0.06

Soldevi Machinist

Creature — Human Wizard Artificer

Mana Cost: {1}{U}

{T}: Add {C}{C}. Spend this mana only to activate abilities of artifacts.

1/1

Masters Edition IV

Riven Turnbull

Legendary Creature — Human Advisor

Mana Cost: {5}{U}{B}

{T}: Add {B}.

5/7

Masters Edition III

Princess Lucrezia

Legendary Creature — Human Wizard

Mana Cost: {3}{U}{U}{B}

{T}: Add {U}.

5/4

Masters Edition III