Squee, Goblin Nabob

At the beginning of your upkeep, he comes back for free, and that single recurring trigger is the entire reason this 1/1 matters. The body has no combat ambition; the strategic axis is hand replenishment, and the card pairs naturally with any "discard a card" cost and the engines built to exploit them. Any effect that wants a card in hand to throw away (a rummaging loot engine, a reanimation enabler that asks you to ditch a creature, a madness outlet) gets an inexhaustible supply, because as long as he sits in the graveyard, every one of your upkeeps offers him back, no matter how many times you have pitched him. He is a fuel source dressed as a Goblin, and the legend rule barely registers because you are almost never casting this for the swing. The flavor reinforces the mechanic better than almost any design of its era: Squee is the comic relief who survives every disaster that befalls his companions, the cockroach of the Weatherlight crew, and the recursion reads as a running gag given rules text. That marriage of a narrative joke to a clean, abusable engine is why the name kept getting reprinted onto new Squees long after the Mercadian setting faded from memory.