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これが戦場に出たとき、あなたがコントロールしている伝説のクリーチャー1体につき1つの食物・トークンを生成する。(それは、「

,

, このトークンを生け贄に捧げる:3点のライフを得る。」を持つアーティファクトである。)

, 食物1つを生け贄に捧げる:これの上に+1/+1カウンター2個を置く。ターン終了時まで、これはトランプルを得る。
Bosco will count himself as a legendary creature for his first ability. He's a bit of a legend around Ba Sing Se!
Food is an artifact type. Even though it appears on some creatures, it's never a creature type.
Some spells and abilities that create Food tokens may require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. You won't create any Food tokens.
If an effect refers to a Food, it means any Food artifact, not just a Food artifact token. For example, you can sacrifice Tough Cookie (an Artifact Creature — Food Golem) to activate Bosco, Just a Bear's ability (an ability with "Sacrifice a Food" in its cost). You can't sacrifice a Food to pay multiple costs. For example, you can't sacrifice a Food token to activate its own ability and also to activate Bosco, Just a Bear's ability.
Whatever you do, don't eat the delicious cards.