What if only some of a staves spells are on your spell list?

[Torger Miltenberger]

If I have a staff and some of its spells are on my spell list but some are not can I

1) Use the staff at all

2) Use the staves spells that are not on my spell list

For example take the Staff of Speaking
http://www.d20pfsrd.com/magic-items/staves/staff-of-speaking

Suggestion, tongues and mass suggestion are all on the wizard spell list.

Denounce and glibness are not.

Can a wizard in possession of this staff use it at all?

Could he use it to cast denounce or glibness?

Thanks

- Torger

[Nefreet]

I'd imagine you'd have to UMD whatever spells you didn't have on your class list. You should have no trouble activating the ones that are. I don't see why it'd have to be all or nothing.

[Torger Miltenberger]

Nefreet wrote:

I'd imagine you'd have to UMD whatever spells you didn't have on your class list. You should have no trouble activating the ones that are. I don't see why it'd have to be all or nothing.

That's reasonable. In fact that's how I would like it to work but the wording for spell trigger activation

http://www.d20pfsrd.com/magic-items#TOC-Spell-Trigger

doesn't seem to take into account the existence of items that store more than one spell. Which is funny since staves have been around forever.

and the using staves section sheds no light on the question either

http://www.d20pfsrd.com/magic-items/staves

- Torger