Question about ST cost when using a staff occult attack

[hcobb]

Originally Posted by Tolenkar

Thanks; especially to Skarg and hcobb. I think I understand now, but, to break it down:
Wizards with a staff can have the staff spell cast on anything. (However, if it's a weapon that's not silver then it is just an expensive club)
Wizards have a choice to:

1.) either strike with their staff, as per a weapon, but spend no ST.
2.) Use an occult attack, with options and benefits of whichever Staff spell level they have, at the cost of 1 ST fatigue.

Does that sound right?

I am still fuzzy as to whether the physical staff strike counts as a magical attack, or not.

A Staff IV can use both the physical strike of a magical weapon (no ST cost) and the staff's occult strike (costs 1 ST) on the same turn against the same target. (ITL 30)

This is a magical weapon doing physical damage because it has immunity to Break Weapon (ITL 23) and immunity to Break Weapon is one of the three defining enchantments for a "magic weapon" as per ITL 42.