Atog
Native to Dominaria, Rath and Mirrodin. Atogs are small imp-like creatures that consume a variety of things to gain the necessary nutrition to grow. They are voracious and relentless and have driven many unfortunate artificers and peasants to ruin.
In the game, Atog cards gain a size boost when their controller sacrifices a particular resource. The original Atog was much maligned when first released, as his resource snack of choice (an Artifact) was often more useful by itself, but as the game grew more complex the Atog's mana-free boost was seen as a powerful trick. The blue, turn eating Chronatog was used as a combo piece in Stasis decks, while the Blue/Black Psychatog (which eats both cards in a player's hand and cards previously played) dominated tournament scenes with its inclusion in slow control decks.
Atogs, with their wide, toothy grins, have traditionally been used as humor cards, with flavor text that often employs some deliberately groan-inducing pun. The word 'Atog' is an anagram of 'Goat', and the atog is a parody of a goat's tendency to eat whatever it comes across. Some say that the name actually originates from a contraction of "Artifact to graveyard", however this is more likely a backronym.
(Atogatog, Auratog, Foratog)
Read more about this topic: List Of Species In Magic: The Gathering