Difference between revisions of "Legendary Gems"

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* Are dropped only at rank 0 and only by [[Greater Rift Guardians]], the final boss found in a [[Greater Rift]].  
 
* Are dropped only at rank 0 and only by [[Greater Rift Guardians]], the final boss found in a [[Greater Rift]].  
* LGems drop quite commonly, but players will never find two of the same type of legendary gem if they have one already on that character or in their stash.
+
* Drop quite commonly (100% drop chance), but players will never find two of the same type of legendary gem if they have one already on that character or in their stash.
 
** To find more than one of the same gem, you need to put the first gem on another character.
 
** To find more than one of the same gem, you need to put the first gem on another character.
 
** This is actually a benefit to players seeking a specific gem, since holding the other types you won't find any duplicates.
 
** This is actually a benefit to players seeking a specific gem, since holding the other types you won't find any duplicates.
* LGems can only be socketed into rings and amulets. Not any other item types.
+
* Can only be socketed into rings and amulets - not any other item types.
* LGems only work when equipped on players. Do not function when equipped on [[followers]].
+
* Only work when equipped on players. Do not function when equipped on [[followers]].
 
* Can only be upgraded with [[Urshi]], the NPC who appears only in [[Greater Rifts]].
 
* Can only be upgraded with [[Urshi]], the NPC who appears only in [[Greater Rifts]].
 
** Upgrade odds are entirely based on the level of the Greater Rift and the level of the gem.   
 
** Upgrade odds are entirely based on the level of the Greater Rift and the level of the gem.   
** If the level of the Grift is more than 10 higher than the rank of the LGem, the odds are 100%. If the Grift is more than 7 levels lower than the gem, the odds are 0%. Full odds listed below.
+
** If the level of the Grift is more than 10 higher than the rank of the gem, the odds are 100%. If the Grift is more than 7 levels lower than the gem, the odds are 0%. Full odds listed below.
  
  
 
==Upgrade Odds==
 
==Upgrade Odds==
  
Upgrade odds are determined entirely by the difference in level between the Greater Rift in which Urshi appears, and the rank of the greater gem.[http://diablo.incgamers.com/blizzard-tracker/devthread/us/14058816325] If the level of the Greater Rift is higher than that of the gem, the odds of the gem gaining a rank are increased. If the level of the Greater Rift is lower than the gem, the odds decrease rapidly.
+
Upgrade odds are determined entirely by the difference in level between the Greater Rift in which Urshi appears, and the rank of the legendary gem.[http://diablo.incgamers.com/blizzard-tracker/devthread/us/14058816325] If the level of the Greater Rift is higher than that of the gem, the odds of the gem gaining a rank are increased. If the level of the Greater Rift is lower than the gem, the odds decrease rapidly.
  
 
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Revision as of 17:07, 16 September 2014

Legendary Gem interface window.

Legendary Gems (or LGems or LeGems) were added to Reaper of Souls in Patch 2.1, after extensive testing on the PTR. There are 14 types of Legendary Gems, all of which add a special bonus when socketed in rings and amulets. The value of the bonus increases with each rank the gem is upgraded, up to a maximum of 25, and at that level a special secondary power is unlocked.

While the developers are calling them "legendary gems" these socketables have nothing in common with regular gems in stats or appearance, and are more analogous to the Rainbow Facet unique jewels of Diablo 2. The main difference in Diablo 3 is that these gems can only be socketed in jewelry, and the way the gems can be upgraded to improve their functions over time.


Rules of Drop and Use

Legendary Gems:

  • Are dropped only at rank 0 and only by Greater Rift Guardians, the final boss found in a Greater Rift.
  • Drop quite commonly (100% drop chance), but players will never find two of the same type of legendary gem if they have one already on that character or in their stash.
    • To find more than one of the same gem, you need to put the first gem on another character.
    • This is actually a benefit to players seeking a specific gem, since holding the other types you won't find any duplicates.
  • Can only be socketed into rings and amulets - not any other item types.
  • Only work when equipped on players. Do not function when equipped on followers.
  • Can only be upgraded with Urshi, the NPC who appears only in Greater Rifts.
    • Upgrade odds are entirely based on the level of the Greater Rift and the level of the gem.
    • If the level of the Grift is more than 10 higher than the rank of the gem, the odds are 100%. If the Grift is more than 7 levels lower than the gem, the odds are 0%. Full odds listed below.


Upgrade Odds

Upgrade odds are determined entirely by the difference in level between the Greater Rift in which Urshi appears, and the rank of the legendary gem.[1] If the level of the Greater Rift is higher than that of the gem, the odds of the gem gaining a rank are increased. If the level of the Greater Rift is lower than the gem, the odds decrease rapidly.

GRift level vs. Gem Level +10 +9 +8 +7 +6 +5 +4 +3 +2 +1 0 -1 -2 -3 -4 -5 -6 -7
LGem Upgrade Chance 100% 90% 80% 70% 60% 60% 60% 60% 60% 60% 60% 30% 15% 8% 4% 2% 1% 0%


Examples:

  • GRift level 17, LGem level 5 = +12 = 100% chance of successful upgrade.
  • GRift level 22, LGem level 14 = +8 = 80% chance of successful upgrade.
  • Grift level 22, LGem level 24 = -2 = 15% chance of successful upgrade.

After players kill the Greater Rift Guardian they can use Urshi's interface to either upgrade the GRK (which will go up at least 1 level, and possibly more if they had a very fast run), or to upgrade a Legendary Gem. One or the other, but not both, so when players choose to upgrade a LGem, they can not upgrade a GRK and continue escalating that series of Greater Rifts.


Legendary Gems Catalog

These stats changed several times during PTR testing. Here are the Legendary Gem stats as of Patch 2.1, which went live in late August 2014.

Legem-bane-of-the-powerful-icon.JPG

Bane of the Powerful

  • Base effect: Gain 20% increased damage for 25 seconds after killing an elite pack.
  • Increase rank grants: +1 second buff duration.
  • Rank 25 unlocks: 15% Increased Damage to Elites.


Legem-bane-of-the-trapped-icon.JPG

Bane of the Trapped

  • Base effect: Increase damage against enemies under control-impairing effects by 15%.
  • Upgrade rank grants: +0.3% damage.
  • Rank 25 unlocks: Gain an aura that reduces the movement speed of enemies within 15 yards by 30%.


Boon of the Hoarder

  • Base Effect: 25% chance to cause an explosion of gold when you kill an enemy.
  • Upgrade rank grants: +1.5% chance on kill.
  • Rank 25 unlocks: Gain 30% increased movement speed for 2 seconds after picking up gold.


Legem-enforcer-icon.jpg

Enforcer

  • Base Effect: Increases the damage of your pets by 15%.
  • Upgrade rank grants: 0.3% more pet damage per level.
  • Rank 25 unlocks: Your pets take 25% reduced damage.


Legem-gem-of-efficacious-toxin-icon.jpg

Gem of Efficacious Toxin

  • Base Effect: Poison all enemies hit for 2000% weapon damage over 10 seconds.
  • Upgrade rank grants: +50% weapon damage over 10 seconds.
  • Rank 25 unlocks: All enemies you poison take 10% increased damage from all sources.


Legem-gogok-of-swiftness-icon.jpg

Gogok of Swiftness

  • Base Effect: 50% chance on hit to gain Swiftness, increasing your Attack Speed 1% for 4 seconds. This effect stacks up to 15 times.
  • Upgrade rank grants: +1% chance.
  • Rank 25 unlocks: Gain 1% Cooldown Reduction per stack of Swiftness.


Legem-invigorating-gemstone-icon.jpg

Invigorating Gemstone

  • Base Effect: While under any control-impairing effects, reduce all damage taken by 30%.
  • Upgrade rank grants: +0.4% damage reduction.
  • Rank 25 unlocks: Heal for 20% of maximum life when hit by control-impairing effect.


Legem-mirinae-teardrop-icon.jpg

Mirinae, Teardrop of the Starweaver

  • Base Effect: 15% chance on hit to smite a nearby enemy for 2000% weapon damage as Holy.
  • Upgrade rank grants: +40% weapon damage.
  • Rank 25 unlocks: Smite a nearby enemy every 5 seconds.


Legem-moratorium-icon.jpg

Moratorium

  • Base Effect: 25% of all damage taken is instead staggered and dealt to you over 3 seconds.
  • Upgrade rank grants: +0.1 second to the stagger duration.
  • Rank 25 unlocks: 10% chance on kill to clear all staggered damage.


Legem-pain-enhancer-icon.jpg

Pain Enhancer

  • Base Effect: Critical hits cause the enemy to bleed for 1200% weapon damage as Physical over 3 seconds.
  • Upgrade rank grants: +30% weapon damage.
  • Rank 25 unlocks: Gain Blood Frenzy, granting you 3% increased Attack Speed for each bleeding enemy within 20 yards.


Legem-simplicitys-strenght-icon.jpg

Simplicity’s Strength

  • Base Effect: Increase the damage of primary skills by 25%.
  • Upgrade rank grants: +0.5% damage.
  • Rank 25 unlocks: Primary skills heal you for 2% of maximum health on hit.


Legem-taeguk-icon.jpg

Taeguk

  • Base Effect: Gain 0.5% increased damage for 3 seconds after spending primary resource. This effect stacks up to 20 times.
  • Upgrade rank grants: +1 max stack.
  • Rank 25 unlocks: Gain 0.5% increased Armor for every stack.

Bliz Note: This buff duration on this gem was chosen so that it’s easier to keep up with cheap spenders and not trivial with expensive spenders.


Legem-wreath-of-lightning-icon.jpg

Wreath of Lightning

  • Base Effect: 15% chance on hit to gain a Wreath of Lightning, dealing 600% weapon damage as Lightning every second to nearby enemies. Lasts for 3 seconds.
  • Upgrade rank grants: +10% weapon damage per second.
  • Rank 25 unlocks: While under the effect of the Wreath of Lightning, gain 25% increased movement speed.


Legem-zeis-stone-of-vengeance-icon.jpg

Zei’s Stone of Vengeance

  • Base Effect: Damage you deal is increased by 4% for every 10 yards between you and the enemy hit. Maximum 20% increase at 50 yards.
  • Upgrade rank grants: +0.05% damage +0.25 maximum distance in yards.
  • Rank 25 unlocks: 20% chance on hit to Stun the enemy for 1 second.


The stats of Legendary Gems changed constantly while they were undergoing development on the PTR. A major revision was created on July 15, 2014 with new or upgraded stats for almost every gem.[1] More changes came August 5th with a patch that changed the Enforcer gem, and completely reworked the upgrading system, changing legendary gems from 50 to 200 ranks. [2] Another patch later in August reduced the total ranks, removed multi-level upgrades, gave 3 chances to upgrade, and changed the secondary property to unlock at rank 25.

See the individual Legendary Gems pages for details on the evolution of their stats over the PTR testing period.

Gem Upgrade Development

The system was under construction all throughout the PTR and saw major changes during July and August, 2014.

Gems initially had 50 ranks, with the odds to upgrade[2] increasing on higher Greater Rift levels. This was reworked after a few weeks, and a patch on August 5, 2014 changed the maximum level from 50 to 200 and greatly increased the odds for multiple rank boosts per upgrade, as well as granting multiple upgrade opportunities on higher level greater rifts. [3]

Legendary gems now start at rank 0
  • Changes have been made to the frequency at which Legendary gems are upgraded
    • Note: Because of this change the power of each upgrade has been reduced, but the overall rate at which gem power is gained through upgrades should remain roughly the same

That system was changed again late in the PTR, with the ranks cut from 200 to 25, and a whole new system of upgrade odds implemented, based on the difference in level between the gem and the Grift. Those odds were the final system which went live a few weeks later.


Legendary Gem Design Theory

Legendary Gem upgrade interface.

Blizzard's John Yang explained the design theory behind Legendary Gems while they were being tested on the PTR, July 15, 2014. [4]

Hi everyone. I wanted to pop in here while discussion on Legendary gems is ongoing.


First off, our philosophy on Legendary gems is that, when you pick one up for the first time, you should immediately want to use it, assuming it’s for your build, since some gems don’t apply to all builds/needs. This puts a minimum bar on the starting power level. After that, the power increase per upgrade is directly related to the frequency of upgrading, which is closely tied to the Greater Rift reward scheme and is still being iterated on. In the end, we’d like gems to be infinitely upgradeable when it makes sense, but not be outrageous.

Additionally, all Legendary gems have been disabled for followers. These powers were not designed for followers in mind, and this way we can ensure the gems are of a high power level because you can only have 3 equipped. In the future, if followers need avenues of advancement we would likely make Legendary gems specifically designed for them.

Now for the details. The existing stats you see on Legendary gems on the PTR today are somewhat placeholder. So, to steer further discussion in a direction that’s more in line with the next PTR build, here are the freshly tuned numbers (with some of my notes) for each gem.


Official Reveal

Legendary Gems were first revealed in June 2014 and the first official info came from Blizzard's Patch 2.1 preview blog. [5]

Legendary Gems are still undergoing significant iteration at this time, so you won’t see them available on the PTR right away. The gist is that these gems are infinitely upgradeable, and provide special Legendary powers when socketed into the appropriate gear slot. They can only be socketed into Rings and Amulets, and can be upgraded by completing additional Greater Rifts. The higher you place in a Greater Rift, the more likely your gem will be successfully upgraded. We’ll have more details in the future as we continue development on these powerful baubles, so stay tuned!


Media

Images of Legendary Gems, from the initial 50 rank system on the PTR.

References

  1. Legendary Gem Updates - John Yang, 15/07/2014
  2. Legendary Gem changes - August 5th PTR Patch 5/08/2014
  3. Legendary Gem changes - August 5th PTR Patch 5/08/2014
  4. Legendary Gem Updates - John Yang, 15/07/2014
  5. Patch 2.1 preview blog - Diablo3.com, 18/06/2014