The items passing through the gate form gold-glowing energy ripples in the empty air as they appear instantly. It is also once referred to as an EX-ranked Noble Phantasm by Tokiomi Tohsaka due to containing Ea. It is a Noble Phantasm that becomes more powerful with the user's wealth, but would accordingly not be useful without a wealth of valuables. The rank of the Noble Phantasm changes from ' E~A++' due to it reflecting the ranks of the contents of the treasury. Allowing for easy access to the items of the treasury, he is able to pick and utilize them as he pleases. It connects the space of reality to the vault, opening an ' invisible door' between dimensions that allows for the contents to pass through upon their owner's command.
His main Noble Phantasm, it is the storehouse that Gilgamesh built to store all the world's treasures he claimed in life, referred to as the ' Divine Gate'. Gate of Babylon: The King's Treasure ( 王の財宝 ( ゲート・オブ・バビロン ), Ō no Zaihō ( Gēto obu Babiron ) ?) is the ' Golden Capital' that the ' King's Treasury' of Gilgamesh, and moreover the golden key connected to it.