Which slot into PoE currency
This works in concert with ability gems, which slot into <a href="https://www.mmogo.com/Path-of-exile/Poe-currency.html">PoE currency</a> pieces of equipment and provide your character spells and skills to use in combat (unlike Diablo 3, they do not have any given abilities). Items will have multiple stone slots, and they're linked. When I put an ability like Orb of Storms to a slot and then join it on Hit, Flammability and Vulnerability, every time my Orb of Storms strikes on an enemy it will also apply both of those curses into them.