Sam is a level 8 sorcerer that takes 1 level of wizard for his 9th level. He now has a wizard spellbook and all that. Walter the level 9 wizard has a thought. Walter hands Sam his own spellbook for a day.

Can Sam prepare the 5th level wizard spells in Walter's book? He has the spell slots and the book has the spells.

Not in the scope of the question: Number of spells preparable. Sam is a level 1 wizard with Int 14 - so, three spells. Walter is a curious wizard who is willing allowing this to happen. Sam can read the language in Walter's spell book.


You determine what spells you know and can prepare for each class individually, as if you were a single-classed member of that class. (PHB 164)

So no, to prepare a 5th level spell from your spellbook, you have to be a 9th level wizard.

Also, he cannot even write the spell in his book. From the Errata v1.0 to the PHB:

The spells cop­ied into a spellbook must be of a spell level the wizard can prepare.

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    \$\begingroup\$ No-one said anything about coping. Sam is preparing it straight from Walters book. \$\endgroup\$ – Overthinks Dec 15 '17 at 14:38
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    \$\begingroup\$ @Overthinks You can only prepare from your own book. \$\endgroup\$ – Szega Dec 15 '17 at 14:39
  • \$\begingroup\$ Hypothetically, let's say that Sam kills Walter in his frustration and takes his book for himself. This let's us get back to the core issue. Sam cannot prepare Wizard spells that a single class Wizard of that same level couldn't prepare. With more Sorcerer levels, his power grows (higher level spell slots), but not his Wizard knowledge. \$\endgroup\$ – Nick Brown Dec 15 '17 at 19:05
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    \$\begingroup\$ Now I'm having second thoughts about my previous comment. I think that you might have to copy any spells that you find (even from other spellbooks) into your personal spellbook if Szega's comment is correct, which I think it is without an errata or sage tweet. The PHB does use your spellbook throughout the Wizard class writeup. So this might just be a second reason that the Sorcerer can't cast high-level Wizard spells with just a dip. \$\endgroup\$ – Nick Brown Dec 15 '17 at 19:30
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    \$\begingroup\$ @NickBrown see Using an acquired spellbook \$\endgroup\$ – Szega Dec 15 '17 at 19:33

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