Positive impact
Eggs in Magic are artifacts that you crack to obtain something, usually cards or mana, and their history begins all the way back in the Odyssey MTG Set with cards like Darkwater Egg
If a card in your graveyard is an artifact creature card, count it only once when determining the cost reduction for this card's first ability
The major characters like the Fellowship of the Ring, their closest allies, and the major villains like Sauron all get multiple mechanically unique cards to represent them during different parts of their long journeys
You have no chance of pulling the one of one, The One Ring, but you could get the default treatment one which plays powerfully, or Orcish Bowmasters both of which are major players in Modern
And who builds a graveyard in a swamp, knowingly anyway