User blog comment:Godisme/Double Issue: Kill the Shadow 2 and The Black Rescuer/@comment-44061-20120627195425/@comment-1706259-20120627202301

Bankai makes the user 5 to 10 times stronger as stated by Yoruichi, even though power levels have barely ever been mentioned in the series: it does give the Vandenreich and Sternritter something to fear.