Noted that preparing a spell from an opposing school for a wizard uses up two spell slots. What effect if any would this have on scribing a scroll or attempting to use a spell from an apposed school with the wizards bonded item?
The creator must have prepared the spell to be scribed
(or must know the spell, in the case of a sorcerer or bard)
and must provide any material component or focus the
spell requires. A material component is consumed when
she begins writing, but a focus is not. (A focus used in
scribing a scroll can be reused.) The act of writing triggers
the prepared spell, making it unavailable for casting until
the character has rested and regained spells. (That is, that
spell slot is expended from the caster’s currently prepared
spells, just as if it had been cast.)
Scribing a scroll: Two slots dedicated to preparing the spell to be cast into the scroll.
The bonded object cannot be used to cast spells
from the wizard’s opposition schools (see arcane school).
Arcane bonded item: You can't.