Between these and the fact that >66 unique maps can drop outside of maps, looks like the unique-drop formula needs to be looked at.
I mean, they'll probably leave them in since the cat is out of the bag, but the formula will need to be adjusted so this doesn't happen for future uniques added.
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Regarding that unique, looks pretty great. "On Full Life" affixes make it interesting for CI melee, but 40ipd/10mspd probably isn't worth -50%es.
The +2 range is best suited for Cyclone, and there are a lot of Cyclone characters that would love another ~20% base AoE. The on full life affixes are just gravy for them.
Unique drop formula is fine.
this amulet is great for aegis aura builds as the ES is a buffer
and +2 melee range is great for sweep, splash, and other skills.
Sweep and Cleave has an AoE range of 20. This is not effected by weapon range.