As this creature enters, choose a creature type. This creature is the chosen type in addition to its other types. Other creatures you control of the chosen type get +1/+1.

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

Changeling (This card is every creature type.) {X}: Until end of turn, creatures you control have base power and toughness X/X and gain all creature types.

Changeling (This card is every creature type.) As this creature enters, choose a creature type. Whenever another creature you control of the chosen type enters, put a +1/+1 counter on this creature.

{2}{W}: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.) Whenever one or more +1/+1 counters are put on this creature, it gains double strike until end of turn.

Sacrifice this creature: Put a +1/+1 counter on target creature.

Artifact creatures you control have afflict 3. (Whenever a creature with afflict 3 becomes blocked, defending player loses 3 life.)

Indestructible {T}: Add {C}. {5}, {T}: Add five mana in any combination of colors.

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

({T}: Add {G}.)

({T}: Add {U}.)

({T}: Add {R}.)

({T}: Add {W}.)

({T}: Add {B}.)

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

Indestructible (Damage and effects that say "destroy" don't destroy this creature. If its toughness is 0 or less, it's still put into its owner's graveyard.)

{T}: Add one mana of any color.

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

Lands you control have "{T}: Add one mana of any color." {T}: Add one mana of any color.

{T}: Add {G}.

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

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

{T}: Add {W}.

{T}: Add {R}.

{T}: Add {B}.

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) {T}, Pay 2 life: Add one mana of any color.

{T}: Add {C}{C}. Spend this mana only to cast Myr spells or activate abilities of Myr. {3}, {T}: Return target Myr card from your graveyard to your hand.

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

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}.

When this creature dies, return another target artifact card from your graveyard to your hand.

Whenever a nontoken creature enters, if this artifact is untapped, that creature's controller creates a 1/1 colorless Myr artifact creature token.

Changeling (This card is every creature type.) Exile target creature. Its controller creates a 1/1 colorless Shapeshifter creature token with changeling.

Prevent all combat damage that would be dealt to attacking artifact creatures you control. Whenever one or more artifact creatures you control enter, draw a card. This ability triggers only once each turn.

As this enchantment enters, choose Mirran or Phyrexian. • Mirran — Whenever you cast an artifact spell, create a 1/1 colorless Myr artifact creature token. • Phyrexian — At the beginning of your end step, draw a card, then discard a card. Then if there are fifteen or more artifact cards in your graveyard, target opponent loses the game.

Whenever you cast an artifact spell, you may pay {1}. If you do, create a 1/1 colorless Myr artifact creature token.

Changeling (This card is every creature type.) Target creature gets +3/-3 and loses all creature types until end of turn.