what are some ultimate items in this game?

[Troacctid]

To me the key word is normally. Normally to me is something that has the entry pass this save for half damage like dragon breath or traps. The starmantle cloak is not a normal thing, it also specifically says weapon or missiles (I have the book of exalted deeds by the way).

The ring of evasion has a different wording:

This ring continually grants the wearer the ability to avoid damage as if she had evasion. Whenever she makes a Reflex saving throw to determine whether she takes half damage, a successful save results in no damage.

This seems pretty ironclad to me.