
→ Infinite card draw, Infinite Clue tokens, Infinite colored mana
→ Infinite colorless mana, Infinite creature tokens, Infinite death triggers
→ Infinite Clue tokens, Infinite death triggers, Infinite ETB
→ Infinite colorless mana, Infinite death triggers, Infinite ETB
→ Infinite death triggers, Infinite ETB, Infinite Food tokens
→ Infinite colored mana, Infinite colorless mana, Infinite death triggers
Food is an artifact type. Even though it appears on some creatures, it's never a creature type.
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 Maraleaf Rider's ability.
Whatever you do, don't eat the delicious cards.
You can sacrifice a Food token created by Gluttonous Troll's triggered ability to pay for the cost of its activated ability.
In a multiplayer game, opponents who have left the game aren't counted by Gluttonous Troll's triggered ability.