That's my favorite way to play. Using potions to heal may be slightly faster at first but once you level Restoration and get higher level spells things get better. Grand Healing gives you a really big boost, especially if you have that perk that boosts healing spells by 50%. Grand Healing also heals any allies nearby so it is useful for keeping followers alive.
Better to heal with potions in battle and use the magic after the fight, imo
Ah, that's a shame. Any combination of a melee weapon and spell that is worth noting?
Don't listen to this guy, potion spamming is almost as lame as zero cost fireball spamming. To answer your question, any one handed weapon can be used effectively with just about any spell. Some of my favourites are muffle, a ward, ice storm(or chain lightning), paralyse, or like they guy above said, a conjuration spell.
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