原文Bill the Pony's last ability doesn't actually change any creature's power. It changes only the amount of combat damage it assigns. All other rules and effects that check power or toughness use the real values. For example, since having two creatures fight doesn't result in combat damage, an effect that causes the affected creature to fight another creature will still use its power to determine how much damage is dealt.
原文If an effect refers to a Food, it means any Food artifact, not just a Food artifact token. For example, you can sacrifice Lembas, an artifact card with the Food subtype, to activate the last ability of Bill the Pony.
原文You can't sacrifice a Food token to pay multiple costs. For example, you can't sacrifice a Food token to activate its own ability and also to activate the last ability of Bill the Pony.
原文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.