Hm, this chapter flew by. Tousen seems really fond of his hax-power.. I bet Zaraki made an traumatic impact. Gin on the other hand made me laugh, haha, that little bastard never changed
I don't get that last line about Ichigo and Rukia either, let's see what others will translate this to.
Tessai could have underestimated Aizen + crew, even though he should have had a clue due to Aizen's reiatsu show-off
but ok, reiatsu alone doesn't imply knowledge + skill to use a forbidden high level kidou spell..
And hey, Byakuya also knows forbidden kidou spells?