Cape of the Mountebank 8
Cloak of Displacement 15
Cloak of the Manta Ray 12 Robe of the Archmagi 18 - 2 = 16
Robe of Stars 19 Robe of Useful Items 7 + 1 = 8
Let players be creative and not go for the strongest item in the room
Cape of the Mountebank 6
Cloak of Displacement 15
Cloak of the Manta Ray 10
Robe of the Archmagi 16 + 1= 17
Robe of Stars 18 -2 = 16
Robe of Useful Items 9