Atogs are a creature type whose members typically trade resources for temporary bursts of power and toughness. These freaky little dudes are best known for “eating” something to get bigger, such as artifacts, Forests, enchantments, or even your next turn.
Specific examples include Atog sacrificing artifacts, Foratog sacrificing Forests, Auratog sacrificing enchantments, and Chronatog letting you skip your next turn. Psychatog expands the formula by discarding cards or exiling cards from your graveyard.