[ITEM] Eye of Gruul

[ghost]

Eye of Gruul: ID = 28823

How it currently works: Procs ~2% on each cast, no matter how many targets you hit . [(1 - (0,98^1) = 2%]

How it should work: ~2% proc on each target you hit. [If "y" is the amount of affected targets: (1 - (0,98^y) = chance)]

By earlin (165 – 1) on 2008/01/14 (Patch 2.3.2)

This trinket only shines on Holy priests using Circle of Healing and Resto shamans using chain heal. If CoH hits all 5 targets, the proc rate is 10%, making it a very nice trinket to have. If Chain heal hits all 3 targets, the proc rate is 6%. For any other healers, 2% is just too low. Paladins/Druids can find better trinkets than this.

jaxsonbateman on 2008/01/14 (Patch 2.3.2)

Your maths here is flawed. The proc rates are not 10% and 6% for CoH and Chain Heal. The chance that this won't proc on a single target is 98%. So for Circle of Healing, the chance that it won't proc at all is 0.98^5 = 90.39%, which means that the chance that it will proc on at least one target is 9.61%. Well, I guess for CoH it was close enough, but the maths logic was incorrect in that it could potentially be 100% if 50 people were healed, which is not the case (actually, it's only about 63.58% across 50 targets - who would have thunk it! =P) For CH it is 1 - (0.98^3) = 5.88%. Again

Fendall on 2008/01/23 (Patch 2.3.3)

Its also worth noting that this trinket reduces the cost of you next heal by 450 mana. And CoH costs...450 mana. Using this trinket with CoH is worth: (2% proc chance) * (number of people healed) * (450 mana) = 9 mana per person healed Spamming CoH every GCD gives this trinket an effective mp5 of: ((9 mana) * (5 people)) / 1.5 = 30 mana sec = 150 mp5!

[Triokon]

We did several tests with Circle of Healing (Priest) and Chain Heal (Shaman). It didn't matter how many targets were healed: The proc chance was always 2% for us.

The bug was already fixed in https://github.com/FeenixServerProject/Archangel_2.4.3_Bugtracker/issues/1514 : Unfortunately it broke again. Could be related with the fix of: https://github.com/FeenixServerProject/Archangel_2.4.3_Bugtracker/issues/2220

Redproduction guide:

To test this, you will need 3 clients.

Client 1: Create a Human Priest .levelup 69 .learn 34866 (Circle of Healing, Rank 5) .add 28823 (Eye of Gruul, trinket) .mod mana 1500000000 .t Shattrath .gm off .gm visible on

Client 2: Create a Human Warrior .levelup 69 .t Shattrath .gm off .gm visible on

Client 3: Create a Dwarf Warrior .levelup 69 .t Shattrath .gm off .gm visible on

How to reproduce:

• Invite Client 2 + 3 with Client 1 in a group and accept the invites.
• Stand close to each other.
• Switch to Client 1, equip Eye of Gruul and start spamming Circle of Healing.
• Every time you press the button to do Circle of Healing, check if you received the buff "Healing Trance" (proc of Eye of Gruul). Repeat this 200 times.
• Observe that you will (most likely) receive "Healing Trance" four times with these 200 casts (1 - (0,98^1) = 2 %).
• Instead you should have received "Healing Trance" 11 - 12 times, because 3 targets were affected by Circle of Healing and you should have 2% chance on each target. (1 - (0.98^3) = 5.88%).

[Nick91]

Eye of Gruul seems to work correctly on the PTR. Test data from the PTR 13/7/4, 13/7/8:

Spell                       | Tar. | Casts | Procs | Chance
----------------------------+------+-------+-------+-------
Binding Heal(Rank 1)        | 2    | 2000  | 56    | 2.80%
Flash Heal(Rank 1)          | 1    | 2000  | 32    | 1.60%
Chain Heal(Rank 1)          | 3    | 2000  | 110   | 5.50%
Lesser Healing Wave(Rank 1) | 1    | 2000  | 42    | 2.10%

[Nick91]

Test data from the PLTR 13/7/10:

Spell                     | Tar. | Casts | Procs | Chance
--------------------------+------+-------+-------+-------
Circle of Healing(Rank 1) | 1    | 1000  | 29    | 2.90%
Circle of Healing(Rank 1) | 10   | 1000  | 27    | 2.70%

[wlfbck]

Mhm Nick91, wouldn't your data suggest that it's actually not working for CoH? Since the chance is roughly the same for 1 and 10 targets, not to mention it's half of what chain heal gets with only 3 targets. (How is it looking for Prayer of Healing btw?)

[Nick91]

Notice the wording (PTR, PLTR, mind the L), those were two different testing realms.

Prayer of Healing should have the same behaviour as Circle of Healing.

[wlfbck]

Ah sorry, didn't see the L there. Honestly i'm a bit confused right now; The order is PTR -> PLTR -> Live, right? Doesn't that mean CoH was just still wrong at that point on PLTR and should now have a chance higher than Chain Heal? Thanks in advance for clarifying that for me :)

[Nick91]

All that says basically is on June 8, 2013 the trinket worked as intended on the PTR, wheras it didn't on June 10, 2013 on the PLTR - I just took CoH to quickly get a precise result (2.7% vs. the expected 18.3%) to determine whether its broken on the PLTR or was actually already fixed (I think it was a clone of Live, so the PLTR test was to check whether this was already fixed on Live or not).

I can't tell you how it works currently since I'm no longer part of the testing team and thus don't have access to the testing environment anymore.