# Portal [[Portal]] is a spell that performs the same function as a [[Portal Scroll]], creating a portal to the current act's town. ## Skill functions and interactions Portal is a colourless gem and can be placed into any item socket. It is a normal spell so it is affected by support gems like [[Faster Casting Support]], [[Cast on Death Support]], [[Cast when Stunned Support]] , [[Spell Totem Support]], etc. Unlike most gems, Portal does not gain any experience and therefore cannot level up. It is possible to gain an additional level on a Portal gem by corrupting it with a [[Vaal Orb]], and the gem can also have its level temporarily increased by items or [[Empower Support]]. However, increasing the gem level has no effect. Weapon swap - Because portal can be used outside of combat without fighting enemies, it is easier to swap weapons to use it. This saves 1 gem slot for characters who don't swap weapons for anything else other than portal.