Ring of Royal Grandeur

I definitely will using only rares!

Which could be fun, but necessity to have most/all resists maxed kills it.

Except rares can have the most resists depending on affixes. Seriously, stuff like Stonehide has 3 resists and several others with two.

and some MI’s have inherent resistances.

Resists are why you use rares. Legendaries are rarely sufficient in that regard.

Which is kind of bad. Why is it a called “legendary”?

+skills, conversion, skillmods, procs/granted skills, set bonuses, etc.

And it is purple

He’s not wrong.