Name:Metallic Mimic
ManaCost:2
Types:Artifact Creature Shapeshifter
PT:2/1
K:ETBReplacement:Other:ChooseCT
SVar:ChooseCT:DB$ ChooseType | Type$ Creature | AILogic$ MostProminentInComputerDeck | SpellDescription$ As CARDNAME enters the battlefield, choose a creature type.
S:Mode$ Continuous | EffectZone$ All | Affected$ Card.Self | CharacteristicDefining$ True | AddType$ ChosenType | Description$ CARDNAME is the chosen type in addition to its other types.
R:Event$ Moved | ActiveZones$ Battlefield | Destination$ Battlefield | ValidCard$ Creature.ChosenType+Other+YouCtrl | ReplaceWith$ AddExtraCounter | Description$ Each other creature you control of the chosen type enters the battlefield with an additional +1/+1 counter on it.

SVar:AddExtraCounter:DB$ PutCounter | ETB$ True | Defined$ ReplacedCard | CounterType$ P1P1 | CounterNum$ 1 | SubAbility$ MoveToBattlefield

SVar:MoveToBattlefield:DB$ ChangeZone | Origin$ All | Destination$ Battlefield | Defined$ ReplacedCard
SVar:Picture:http://www.wizards.com/global/images/magic/general/metallic_mimic.jpg
Oracle:As Metallic Mimic enters the battlefield, choose a creature type.\nMetallic Mimic is the chosen type in addition to its other types.\nEach other creature you control of the chosen type enters the battlefield with an additional +1/+1 counter on it.