アーティファクト
パワーとタフネスの値が等しいクリーチャー1体があなたのコントロール下で戦場に出るたび、あなたは

を支払ってもよい。そうしたなら、カード1枚を引く。
If one or more static abilities that apply to a creature entering the battlefield change its power or toughness, those abilities are considered when determining whether or not Symmetry Matrix's ability triggers. The same is true for replacement effects that apply to it, such as entering the battlefield with one or more +1/+1 counters or entering the battlefield as a copy of another creature.