When last we looked, Spanish store Gremio de Dragones had pushed the bidding ceiling to $2 million and a paella
You gain a massive mana advantage since it makes 2 mana on attack, plus it doubles the mana of any Treasure you have lying around
Second and most importantly, giving your opponent a prize card isnt always a bad thing
X: Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle
That alone is a neat pseudo-reanimation effect, but with storm, this becomes a sudden parade of resurrected threats, each swinging in for surprise damage
In both instances, Smeargle looks thoroughly jazzed to be there, chilling with its friends