Haystir also appears in Soul Calibur IV under tower of lost souls in both ascend & descend mode but in ascend he is under the floor "Avaricious Life" using Yun-seong's style and teamed up with Talim & Annaretta.
Soul Calibur IV Skills & Details
HP Drain A
HP Recovery A
Nullify Ringout C
TOLS Ascend Mode Floor: Avaricious Life
Partners: Talim & Annaretta
Descend Mode: 4-24 (Depending)