Since I have levels in Bard, can I copy (for example) mass cure wounds (a level 5 bard spell that isn't also a wizard spell) from a bard scroll into my spell book?
Could I do this idea with 3 levels in Cleric instead of in Bard?
Since I have levels in Bard, can I copy (for example) mass cure wounds (a level 5 bard spell that isn't also a wizard spell) from a bard scroll into my spell book?
Could I do this idea with 3 levels in Cleric instead of in Bard?
The "Your Spellbook" sidebar states the following about copying spells into your spellbook (emphasis mine):
When you find a wizard spell of 1st level or higher, you can add it to your spellbook if it is of a spell level you can prepare and if you can spare the time to decipher and copy it.
This passage disallows copying spells outside those available to a wizard into the spellbook, regardless of what other classes you've taken levels in.
No. The wizard spell book is an item made to contain only wizard spells, and due to the fact that mass cure wounds is not, indeed, a wizard spell, it couldn't reasonably be copied into a wizard spellbook. The same could be said for any other non-wizard spell.
Actually you could copy mass cure wounds because as a wizard / bard all the spells YOU know become both wizard and bard spells to YOU.