Hey [MENTION=20323]Quickleaf[/MENTION]!
I have questions regarding multi-classing and the magic without borders feat.
Ah yes, I expected so. I'll do my best to answer your specific questions. The general principle of the feat is to let you choose spells from any spell list, not to boost the number of spells you know or the level of spells you can cast. Magic in the witcher setting can be understood in many ways, and besides social restrictions there is nothing stopping a sorceress from learning Druid secrets, or Druid from mastering a fireball spell.
Say I decided to go Druid 2/Wizard 1 (which fits with my concept), would the magic without borders feat allow my character to cast level 1 and level 2 spells, or would he be limited to only level 1 spells, since both his druid and wizard levels only give him 1st level spells?
No, he would not be able to cast level 2 spells.
Also, assuming that he is a single classed druid with the magic without borders feat, would he use his wisdom modifier for all spells he casts or Wis for cleric/druid, Int for wizard and Cha for bard/sorcerer/warlock? If he muticlasses druid/wizard, would the answer change?
I think the spirit of the rule would indicate you use the Spellcasting ability of whichever class you posses a level in of your choice for ALL your spells, regardless of what spell list they come from. So a Druid would use Wisdom for all spells. A Druid/Wizard could choose whether to use Wisdom or Intelligence for all spells.
And to clarify, as a single classed druid with the feat, he needs only to meditate to prepare the wizard spells, right? If he multiclasses druid/wizard, can druid spells (or any non-*wizard spells) be in his wizard Spellbook?
This is a sticky situation, and I'm not sure how to resolve it yet. When I wrote the feat it was with wizards or sorcerers taking it in mind, and those classes have built-in limits on spells known.
Druids, however, prepare ANY spell on the druid spell list. If a druid takes Magic Withhout Borders, it seems excessive to allow them to prepare any spell in the game as that is that clearly is overpowered without a limit on spells known.
So I think we'd need to introduce some sort of limit on the number of non-Druid spells you can learn. What seems fair to me is to use the wizard guidelines, so a 3rd level Druid would know 6 1st-level wizard spells, and 4 more wizard spells of his choice. And he meditates as normal for a Druid to prepare those spells.
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In the case of a wizard's Spellbook, yes he could add Druid spells (or any other class' spells) to his Spellbook. Since the Spellbook has built in limits (6 1st-level spells + 2 spells/level + discovered spells), this works just fine.
Also during the course of play you can transcribe Druid spells down into formulae that you could record in your Spellbook thru research during downtime if you wished.