金属ミミック
アーティファクト・クリーチャー — 多相の戦士
金属ミミックが戦場に出るに際し、クリーチャー・タイプ１つを選ぶ。
金属ミミックは、他のタイプに加えてその選ばれたタイプでもある。
あなたがコントロールしていてその選ばれたタイプでありこれでないクリーチャーは、＋１/＋１カウンターが追加で１個置かれた状態で戦場に出る。
イラスト：
The Lost Caverns of Ixalan Commander#308レア日本語適正
裁定
Creatures of the chosen type that enter the battlefield at the same time as Metallic Mimic won't enter with an additional +1/+1 counter.
The 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.
Even 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.
You must choose an existing creature type. "Artifact" and "Vehicle" aren't creature types.