DotA2 - Original Thread

Just had a game in which enemy team picked 5 tanky strength heroes. I wanted to play support and picked SD for easy lane harass, but the game went on for too long and enemy team got even tankier and I didn't know what to do... Is there a supportish ranged Hero that reduces armor or amplifies damage without having to buy any items? Kind of like VS or Undying? Also, other than medallion is there a cheap item that reduces armor? I know AC and Desolator do, but Idk if as SD I can farm that much in a game.