Support Gems are special items in the game Path of Exile that enhance the abilities of your character's skills. When linked to a skill gem, they modify how that skill works, adding effects like increased damage, area of effect, or additional elemental damage. This allows players to customize their playstyle and create unique builds. Each Support Gem has specific requirements, such as a minimum level or particular attributes, and they can only be used with compatible skill gems. Players can experiment with different combinations to find the most effective synergies for their character's abilities, making gameplay more dynamic and engaging.