I forget which two spellbooks the Bard could cast from, but I also purchased additional spellbooks and read them with the bard (with the trait that allows research into purchasable spellbooks), but in tactical combat, the Bard had absolutely no spells, only skills. :/ That killed my Bard trying to fight a Banshee since Banshees are immune to non-magic damage. :/ On the strategic screen, the Bard shows as having all four elemental magic with spells available.