Hard carry is a Dota 2} term to define type of hero who is most
effective at ultra late game if farmed well. They usually need lots of items to be
effective, they are extremely weak and useless at
early game.
For instance 3 slotted Phanto Assasin is much stronger than a 3 slotted Medusa, but when they are both 6 slotted Phantom Assasin will get rekt by Medusa.