just drop the shield into the chest.
you can now:
1. (if you have stealth), throw dagger into enemy's back
2. cast spells while holding sword
3. have all sword combo skills and counter attack
4. more damage from sword (and zapped sword) instead of dagger
5. be less cumbersome
Congratulations! You have unlocked Spellblade class
now, if only they let me fight with SHIELD only. Id be like Captain America.
btw, i think they really should make force bolt to knockback /push enemy back 1 tile