Instead, if a weapon is magic, it does an additional die of damage, half damage on a miss (like saving vs dragon breath), and doesn't break except by magic.
If armor (or shield) is magic, your armor doesn't break except by magic; and, for piece of armor you wear, gain additional hp equal to your level: x3 if helmet, x2 if shield or covers vitals, and x1 otherwise.
Those are the new base properties. Carry on.
(This means you can give out a single magic shoe, and it will be great.)