Like a literal blank slate, the item does nothing on it's own, but has lots of potential, depending on how you chose to fill it up. Practically, it offers offensive power at the cost of defenses. It can be quite useful while levleing new characters through early content, and for experimenting with different gem layouts for future builds, but is unlikely to do well in endgame.

The modifiers on this item cause it to have no defenses - not even the base values that would be on a normal Tabula Rasa Simple Robe, and cause it to always have a full 6, linked, white sockets. White sockets can accept gems of any colour, making it easy to link lots of path of exile 2 orbs together, since you don't have to care about finding poe items with the right colours on their sockets to match the supports you want to use.