Annaretta appears in Soulcalibur IV tower of lost souls both ascend & descend mode but in ascend mode she is under the floor "Avairicous Life" using Cassandra's style and is partnered up with Talim & Haystir.
Soul Calibur IV Skills & Details
2.Nullify Ringout B
3.Soul Gauge Boost B
TOLS Ascend Mode Floor: Avaricious Life
Descend Mode: 4-further.