User blog comment:Freshtaco/Scale of the Watchers/@comment-1330314-20140425130958

There are a few things you need to ask yourself when creating an item:
 * Who is this item specialized to benefit? The answer here would be "nobody in particular", since your item gives stats that would benefit literally every champion, along with stats that wouldn't. It would be awkward for an AD champion to build just for this item, just as it would be awkward for an AP champion to build a, so only a hybrid champion would make effective use of the offensive stats. On top of that, it gives more armor and MR than a , but that's another point.
 * How feasible is it to build this item in an average game? Considering your item is by far the most expensive, costing 700 gold more than, the next most expensive item, and builds off of extremely difficult components to purchase (namely, the B.F. Sword), it's going to be very hard to build this item, requiring a huge gold and slot investment that can delay building other items.
 * Does this item offer a valid alternative to other items? Again, this is a problem with Scale of the Watchers, because it's superior in every way to Guardian Angel: not only does it give more magic resistance and the same amount of armor (plus offensive stats), but its active is also far stronger than GA's passive, potentially restoring a lot more health and mana and instantly granting an escape. Like Kikanolo said, this is in fact stronger than quite a few ultimates.

You have an interesting active effect on this item, but I think it would be best used as a champion's ultimate. Other than that, the item you propose has quite a few issues that I think restructuring wouldn't fix.