The only difficulty for warriors in Daggerfall is the ancient vampires lightning touch of spamy death. You have to use potions of resist lightning for that or plain avoid them. Would using a bow count as pure warrior for you? I suppose you could also finish the game before you reach the level they start showing up.
Well theirs also Daedra lords, which would spam ranged attacks, and ancient litches, which if I remember, your have to fight one in the main quest.
Hell I remember the first dungeon had imps that could spam death you if you weren't careful.
Which is why its nice to have some magical shields to soak up the damage, It was quite possible to build shields that could soak up 500+ damage and could last 24 hours.
Which made it very possible to run through the game with little or no armor.
And there's having access to item enchantment, which is always a plus.
Oh and I've seen Ancient Vamps Spawn at low levels, and even once heard a Daedra Lord before he killed me (That's right I didn't even see him when he whooped my ass.) Course no amount of magic is going to save you if you run into them at level 8, just saying I've had this happen to me.
Potions are NOT dependant on any magic skill to use, purchase or make.
Ok point taken. Though it does take time to gain access to potion makers from the temples. Plus potions actually have weight. Me I'd rather have a levitation/water breathing spells handy, and a bunch of potions of restore power then carry a ton of potions of both. But I suppose it is possible to play a pure warrior in Daggerfall. So I'll concede that point you can play a pure warrior, though I don't know why anyone would want to.