I noticed several core2k anki cards that uses を for intransitive verbs so I'm curious.

for example, one of them is にもつ を預 あず かってください。

please tell me.

http://okwave.jp/qa/q6398356.html

Basically both 預ける and 預かる are transitive. They're like 'to give/hand over' (預ける) and 'to receive' (預かる).

Edit: Or you could think of it as 預かる = having '預ける' done to you. But there's still an object that you're receiving which you mark with を.

That's a transitive verb but yes, there is a class of intransitive verbs that can take を: motion verbs. http://www.imabi.net/l12theparticlewo.htm