Cheapest priced copy (Foundations Commander): $1.79 at Card Kingdom, near mint, their price list as of .
Metallic Mimic 
Artifact Creature — Shapeshifter · 2/1 · Rare · Aether Revolt · #164
As this creature enters, choose a creature type.
This creature is the chosen type in addition to its other types.
Each other creature you control of the chosen type enters with an additional +1/+1 counter on it.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
10 printings · $1.79 to $22.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Aether Revolt | 164 | Rare | $2.79 | $6.99 |
| Foundations Commander | 269 | Rare | $1.79 | — |
| Innistrad Remastered | 268 | Rare | $3.49 | $4.49 |
| Innistrad Remastered | 445 | Rare | $3.49 | $4.99 |
| The Lost Caverns of Ixalan Commander | 308 | Rare | $2.79 | — |
| Marvel Super Heroes Commander | 203 | Rare | $1.99 | $2.99 |
| Marvel Super Heroes Commander | 441 | Rare | $2.99 | — |
| Aether Revolt Promos | 164s | Rare | — | $7.99Out of stock |
| Teenage Mutant Ninja Turtles Source Material | 16 | Mythic | $2.29 | $4.99 |
| Secret Lair Drop | 194 | Rare | $22.99 | $18.99 |
4 rulings from Wizards of the Coast
- 9 February 2017The choice of creature type is made as Metallic Mimic enters the battlefield. Players can't respond to this choice. Metallic Mimic's second ability starts applying immediately.
- 9 February 2017Creatures of the chosen type that enter the battlefield at the same time as Metallic Mimic won't enter with an additional +1/+1 counter.
- 9 February 2017You must choose an existing creature type. "Artifact" and "Vehicle" aren't creature types.
- 9 February 2017Even though Metallic Mimic is a Shapeshifter, other Shapeshifter creatures you control won't get a +1/+1 counter unless you chose Shapeshifter as Metallic Mimic entered the battlefield. If you do, that creature must be entering the battlefield as a Shapeshifter to get a +1/+1 counter. It won't get a +1/+1 counter if it enters the battlefield as a copy of a non-Shapeshifter creature.