Not the best characters/accessories/link slots.
Putting TT Renji first for faster clear times. TT Renji can sometimes finish everything himself but usually dies on 4th floor. Retsu can clear the rest. If Retsu dies from special, Ichigo can finish.
Tag Team Renji
Accessories - Yuki (20 SP), Robe (30 SP), Pupples (20 SP)
Links - Frenzy Yoruichi, 14 CDR, 14 CDR
Slots - 0/0/0
TYBW Retsu
Accessories - Robe (40 Stam), Chappy (40 Stam), Gold Pupples (30 Att)
Links - 20 DR, 16 DR, 16 DR
Slots - 10/10/10
TYBW True Bankai Ichigo
Accessories - Yuki (30 Att), Pupples (30 Att), Robe (40 Stam)
Links - Frenzy Byakuya, Frenzy Yoruichi, Resurrected Red Kenpachi
Slots - 0/0/0