Legendary Gems are Bugged and Disabled on PTR

Legendary gems are dropping on the PTR, with special powers that can only be enabled by feeding them to the special artisan who appears when you fail to complete a Greater Rift, but as is often the case with a new game thingie, there are bugs. Enough bugs that Blizzard has turned them off, for the time being.

We’ve recently discovered an issue with Legendary Gems that is causing PTR clients to crash whenever a gem power is activated.

We’re working to resolve this crash as quickly as possible, but do not currently have an ETA to share. In the meantime, to help improve PTR stability and prevent further crashes, all Legendary Gem powers have been temporarily disabled. Please note that Legendary Gems can still drop on the PTR, but they will not provide any of the bonuses listed on their tooltips.

Once Legendary Gem powers have been re-enabled, we’ll provide an update in this thread. Thank you for your patience!

Remember that legendary gems only work in rings and amulets, so you could have, at most, three of them on a character. Also, implementing them is going to take some changes to gear, since hardly anyone has a top quality ring/amulet now with a socket in it, simply because in the live game, there are many affixes on jewelry that provide a much bigger boost than a socket. I’ve heard from players on Live who are trying to farm up legendary jewelry with sockets, or considering which current top end affixes are best to sacrifice to add a socket via enchanting.

Before the gems were turned off, some players found enough to report some results. Here’s a quote from the best post I’ve seen on them, via the B.net PTR bug report forum.

Moratorium (Gem of Staggered Damage):
When wearing an immunity amulet, damage you should be immune to is added as staggered damage.

If you have an immunity amulet (tested with Countess Julia’s Cameo on a Demon Hunter), the staggered damage accumulates even though you are technically gaining life and not taking damage. So standing in an arcane beam to heal will do so properly, but the Gem will cause you to accumulate the damage you would have as though you didn’t have immunity to it, and will then proceed to damage you over the several seconds the gem’s proc lasts.

legendary-gem-ptr01Bane of the Powerful (Gem of Damage After Elite Pack):
Does not trigger proc if your pet gets the killing blow.

The bonus does not trigger at all if your pet delivers the killing blow. On Demon Hunter, this happened both from Companion and Sentry buffed with the full 6-piece Marauder set bonuses. If my character personally dealt the killing blow, the bonus would trigger properly and the buff icon would appear. I checked my character sheet to see if it was simply a buff icon bug but my damage remained the same unless I dealt the killing blow.

Taeguk (Gem of Increased Damage after Spending Resource),
Gem of Efficacious Toxin(Gem of Poison DoT Debuff),
Wreath of Lightning(Gem of Mini-Conduit):

Gems simply stopped functioning at all.

Taeguk worked as intended on my Demon Hunter for about one full rift. I believe I was disconnected, and when I logged back in the gem no longer functioned at all. Unsocketing and resocketing the gem didn’t fix the problem, nor did changing my hatred spenders. Other gems seem to be doing this as I post this, specifically the Poison and Conduit gems. I’m guessing this was just a hotfix issue which temporarily disabled these, but I thought at the time they may have stopped working due to being unsocketed and then resocketed in gear (meaning unsocketing would permanently “break” a gem). I am unsure if the previous two bugs and the following one are related to this one, though at least for the latter it seems likely.

Gems are not working when in items equipped by followers.

In addition, none of the gems seem to work with followers, which I would classify as a bug. Assuming they meet the criteria (such as with several of the Legendary items that work with them like Ess of Johan) it would be reasonable to assume the gems would work on followers as well. Tested with three separate gems on Kormac and Lyndon.

And he didn’t even get the crash bugs that forced Bliz to turn the gems off entirely. New features are… new?


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  1. What does that “Requires Rank 50” mean?

    • It means the gem needs to be upgraded 50 times before that effect will be unlocked.

      • Most likely means hitting level 50 Greater Rift, and then upgrading.

        • You don't actually have to get to Rift Level 50 to upgrade them that far. It seems to work on some kind of chance-based scheme (kind of like all of Diablo >_>;;) in that the higher the Rift Level you were on when running out of time, the higher your chances of getting the gem to upgrade are. They also seem to have no maximum level. This is all, however, assuming the gems are operating as intended which they obviously haven't been.

  2. "special powers that can only be enabled by feeding them to the special artisan who appears when you fail to complete a Greater Rift"
    Good to f*ckin' know.

    • When you fail to complete the greater rift ‘in time’. The artisan appears after you have killed the rift guardian and the timer has ran out. I just attempted my first upgrade at gr lvl19 after letting the timer burn out. I think it was 44% chance for an upgrade at this lvl and it failed, booo!

  3. Wow, I got quoted by Flux in a news post… Neato! To be fair I was experiencing disconnects and client freezes throughout the earlier portions of the night right up until the gems stopped working (I also made the post before Lylirra chimed in on them being turned off). I didn't mention crashing in my post because I had no way to know if the legendary gems had a connection with any of the 10 flavors of crashing I was experiencing. I did make it through at least one Greater Rift and several bounties with two socketed and working though (one of which was in my pants and shouldn't have been able to work at all).

    From what I was able to gather from using them, you're pretty much going to want to drop an affix on each piece of jewelry to accommodate them into any given build as the effects are, in my opinion, greater than anything than perhaps a 20%+ Elemental Damage affix when upgraded. This stings pretty bad for someone with a Mystic'd 20% Fire Dmg, 8% CC, 7% ASP Count Julia's Cameo. :'(

  4. > This stings pretty bad for someone with a Mystic'd 20% Fire Dmg,
    > 8% CC, 7% ASP Count Julia's Cameo. :'(

    Well amulets are already "ruined" IMO because of the awesome hellfire amulets. It is going to be very hard to pass up a 5th passive so I'm guessing hellfire amulet + socket + leg gem is going to be BiS for most all builds.

  5. Care to explain what is "staggered" damage ? It's not so clear from the post.

    • Staggered means the damage will be changed to a dot. So 100k damage immediately is changed to 100k damage spread out over X seconds.

  6. Should the Gem of Stagered Dmg info read "and will then proceed to damage ENEMIES over the several seconds", doubtful the gem actually damages you.

    • No, the gem actually damages you. It’s meant to smooth out damage spikes – say you take 100k damage; the gem prevents that damage, and then lets you take a percentage of that damage for a number of seconds instead. (I’m betting there’s also an implicit or explicit damage mitigation factor built in, as well.)

      • That's the problem actually. It confused me too. It says: 'When wearing an immunity amulet, damage you should be immune to is added as staggered damage.'

        So if I read that correctly it says that instead of being immune to the damage, it now damages you but over time. Makes no sense whatsoever.

        • I think you're a little confused. What you're reading in this article is my bug report on the gems, hence "via the B.net PTR bug report forum" in the paragraph prior. I did not state the effect of the gems because that would have simply cluttered up the bug report (if the devs don't already know what their gems do, that's a problem). Instead what you're reading as the effect of these gems were the bugs I was finding with them.

          The "Staggered Damage" gem reads:
          "50% of all damage taken is instead staggered and dealt to you over X seconds."
          "10% chance on kill to clear all staggered damage." (Requires Rank 50)

          You can literally look at screencaps of all the gems right now on Diablofans.com or by simply giving Google a whirl.

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