Green, lean, keen, and mean, goblins are a highly cherished creature type in Magic: The Gathering, and there are all sorts of popular MTG goblin decks available in a variety of formats
Theyre secretly a back-up plan for when we cant find a Lions Eye Diamond, in these scenarios, it just turns Echo of Eons into a pseudo Diminishing Returns (same casting cost effectively) !It may seem weird to continue running copies of Duress when they cant target ourselves to discard Echo of Eons, but lets face it, the deck isnt built around a Burning Wish target
On top of spoiling some mechanically awesome MTG cards, there are tons of flavorful references too
(It has menace and can't block.) Whenever one or more other creatures you control enter, if this creature is suspected, you may suspect one of the other creatures