Feasting Troll King
Creature — Troll Noble
Vigilance, trample
When Feasting Troll King enters the battlefield, if you cast it from your hand, create three Food tokens. (They're artifacts with ", 
, Sacrifice this artifact: You gain 3 life.")
Sacrifice three Foods: Return Feasting Troll King from your graveyard to the battlefield. Activate this ability only during your turn.
Illustrated by
Throne of Eldraine#152RareEnglishLegality
Rulings
If you put Feasting Troll King onto the battlefield from your hand without casting it, its enters-the-battlefield ability won’t trigger.
If you cast a creature spell that enters the battlefield as a copy of Feasting Troll King, such as Clone, the enters-the-battlefield ability will trigger.
If an effect refers to a Food, it means any Food artifact, not just a Food artifact token. For example, you can sacrifice Gingerbrute to activate the last ability of Tempting Witch.
Food is an artifact type. Even though it appears on some creatures (such as Gingerbrute), it’s never a creature type.
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 ability of Tempting Witch.
Whatever you do, don’t eat the delicious cards.