Dyntos creates Pseudo-Palutena as one of his three trials. She attacks with many of the same attacks as Palutena when she was controlled by The Chaos Kin. After she (it?) is hit several times, her fake face somes off, revealing an ugly one. Dyntos puts the real Palutena to sleep at the beginning of the battle, leading Pit to think he is fighting the real Palutena. Afterwards, Palutena wakes up, and Pit is reassured this isn't the real deal.
Kid Icarus: Uprising - Idol Description
"A twisted version of Palutena created by Dyntos as a joke. During the appearance of Pseudo-Palutena, Dyntos put the real goddess to sleep miles away. This amazing feat is evidence that Dyntos's power exceeds even that of Hades."