You get to tap your rocks for mana, bounce them back to hand, and then recast them to increase your storm count and hopefully even net extra mana, although that requires more artifacts that produce more mana than they cost like Sol Ring, Mana Vault, and Grim Monolith
Everybody needs roads, and the roads cost money
Stalking Vengeance can be a one-shot kill card with creatures like Lord of Extinction or even Malignus if theres an opponent with a relatively high life total
Skilled Combatant basically allows Robin Hood to play double duty, gaining Lore while taking out opposing threats
Include low-cost cards in a deck
Used against an opponent, its an effective way of quickly removing a tough character - or one protected from challenges through keywords such as Evasive or Resist - albeit with the downside of letting them draw cards