Position 5 / Pos 5 / Hard support:

Position 5, or hard support, is the Dota 2 role that focuses on protecting the carry and helping the team with vision, disables, and utility while taking very little farm. It is usually the lane support in the safe lane and often buys wards, smoke, and other team items instead of core damage items.

This role matters because it helps the team control the map, keep lanes stable, and create safe conditions for cores to farm and fight.