User blog comment:Xilinoc/Ch. 554 - Desperate Lights/@comment-2211792-20131023154055/@comment-5147109-20131023202916

I would venture a guess that Ichigo may be calling to inform them of how to fight against Vollstandig since he is the only one to fight against an enemy using it, something to note though is that even though Ichigo was only at partial power at the time due to not having unlocked his true potential he was still able to hold his own against Quilge. Sklaverei is going to be the biggest threat to them at the immediate time.