# \[Reported\] Duplicate Champion in Class Trial (Switch)
**URL:** https://community.gemsofwar.com/t/reported-duplicate-champion-in-class-trial-switch/78956
**Category:** Bug Reports
**Created:** [February 17, 2023, 2:28am UTC](https://community.gemsofwar.com/t/reported-duplicate-champion-in-class-trial-switch/78956 "2023-02-17T02:28:24Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Stratelier](https://community.gemsofwar.com/u/Stratelier)
#### Post date: [February 17, 2023, 2:28am UTC](https://community.gemsofwar.com/t/reported-duplicate-champion-in-class-trial-switch/78956/1 "2023-02-17T02:28:24Z")
So in this week’s (Switch) Doomsayer Class Trial, the lineup of Champion teams to fight was:
How did King Highforge appear twice? Has something like this happened before?
It’s not exactly a big deal – I didn’t even notice it until round 3! – but I’ve never seen a team duplicated in this mode before. In a mode where I already wish there was a greater variety of teams to fight (there are, what, only 7 total, with 5 picked? Queen Mab, Queen Titania, Emperor Korvash, and anything else if I forgot one)
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### Author:  [@Stratelier](https://community.gemsofwar.com/u/Stratelier)
#### Post date: [November 9, 2023, 8:27pm UTC](https://community.gemsofwar.com/t/reported-duplicate-champion-in-class-trial-switch/78956/2 "2023-11-09T20:27:05Z")
We have another incident – today’s Suncrest/Stormcaller class trial featured these:
Also, I located my prior screenshot (taken when it happened back in February) so I’ve added that to my OP.
Combined with previous reports, all 3 incidents seem to share only team #4 being duplicated, maybe this is useful? After all, as [stated previously](https://community.gemsofwar.com/t/not-a-bug-class-trial-problem-mechanist/79976/6) if the teams were selected randomly with no “duplicate protection” then we would expect duplicate teams to happen constantly (~80% of the time) – even if _only_ team #4 was somehow not checking for duplicates, this could still be expected to happen frequently (~40%), yet these duplicates are actually super rare in practice.
Also, here are a few ideas for this mode going forward:
- Shuffle the 5 Champion teams after each round is completed (all 5 champions defeated) – the fact that it’s the same teams each round is why this mode sucks to play.
- Add more teams to the mode, to increase the variety.
> **Additional team ideas**
>
> There seem to be 9 teams currently:
>
> - Chief Stronghorn (Tauros / Wild Plains)
> - Emperor Korvash (Human / Leonis Empire)
> - Gar’Nok (Orc / Grosh-Nak)
> - Hyndla Frostcrown (Giant / Stormheim)
> - King Highforge (Dwarf / Khaziel)
> - King Mikhail (Urska / Urskaya)
> - Queen Mab (Fey / Glacial Peaks)
> - Queen Titania (Fey / Bright Forest)
> - Queen Ysabelle (Human / Sword’s Edge)
>
> I see a theme that each team appears centered around a specific “ruler” kingdom Legendary (king/queen/etc) so … how about some new additions? For example:
>
> - Goblin King (Goblin / Zaejin)
> - King Avelorn (Elf / Forest of Thorns)
> - King Silenus (Wildfolk / Pan’s Vale)
> - King Triton (Merfolk / Merlantis)
> - King Heliodor (Elemental / Nexus)
> - The Silken Queen (Elf / Zhul’Kari)
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### Author:  [@Ant\_Man](https://community.gemsofwar.com/u/Ant_Man)
#### Post date: [November 10, 2023, 4:49am UTC](https://community.gemsofwar.com/t/reported-duplicate-champion-in-class-trial-switch/78956/3 "2023-11-10T04:49:15Z")
it’s been like this for ages. Already classified as “not a bug in other post”.
PS: Don’t we have King Mikhail in one of those teams?
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### Author:  [@Stratelier](https://community.gemsofwar.com/u/Stratelier)
#### Post date: [November 30, 2023, 6:59pm UTC](https://community.gemsofwar.com/t/reported-duplicate-champion-in-class-trial-switch/78956/4 "2023-11-30T18:59:27Z")
New incident: _(screenshot taken, but pending upload)_
This week’s Shaman Class Trial featured:
- Emperor Korvash
- Queen Titania
- King Mikhail
- Emperor Liang
- Queen Titania
Again, this is suspected to be a bug due to how rare it is.
- If the Champion teams are intended to be 5 _unique_ picks then it’s obviously a bug, _period._
- If duplicate Champions _are_ allowed, then statistically (100% - (9 \* 8 \* 7 \* 6) / (10^4) = 100% - 30.2%) or ~70% of Class Trial events can be expected to have at least one duplicate team, but this is (as far as I can tell) _only_ my third incident in 9 months (11/30 from 2/16 = 289 days or 42 Class Trial events) so the actual incidence of duplicate teams is at most 1/14 or 7%, not comparable to the expected value at all.
Again, if duplicate teams are “allowed” then we should reasonably expect to see a duplicate team appear 70% of the time, yet the actual incidence (over 9 months) is only about 7%. The incidences do not reflect the math at all – there must be something else going on under the hood.
> **For comparison**
>
> Back when the Boss Dungeon rework launched, it was quickly documented that certain doors would never contain certain rooms, making certain combinations more/less likely to yield a Perfect Run (aka. Dragonite reward) than others. This was later confirmed to be a bug and was fixed, but it was a pretty subtle one that needed a closely monitored code walk/analysis by the dev team to determine just _what_ was actually causing it.)
> **list of teams and the math**
>
> Class Trial appears to use a pool of 10 teams, each focused around a “ruling class” Kingdom Legendary:
>
> - Chief Stronghorn
> - Emperor Korvash
> - Emperor Liang
> - Gar’Nok
> - Hyndla Frostcrown
> - King Highforge
> - King Mikhail
> - Queen Mab
> - Queen Titania
> - Queen Ysabelle
>
> Probability of picking 5 of 10 unique teams completely by random:
> = P(10,5) / 10^5 = P(9,4) / 10^4 = 3024 / 10^4 = ~30.2%
>
> Inverse probability (i.e. at least one duplicate occurs):
> = (100% - 30.2%) = ~69.8%
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### Author:  [@Stratelier](https://community.gemsofwar.com/u/Stratelier)
#### Post date: [December 7, 2023, 4:59pm UTC](https://community.gemsofwar.com/t/reported-duplicate-champion-in-class-trial-switch/78956/5 "2023-12-07T16:59:24Z")
Another incident – and the first “streak” of duplicates in a row:
- King Highforge
- Gar’Nok
- King Highforge
- Queen Mab
- Chief Stronghorn
Again, the questions are:
- if this was “intentional” then _why is it so rare_? We would (mathematically) be seeing duplicates in ~70% of Class Trial events, (and by extension, a “streak” ~50% of the time)
- How are the cpu teams for Class Trial events actually chosen?
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### Author:  [@Stratelier](https://community.gemsofwar.com/u/Stratelier)
#### Post date: [February 13, 2025, 11:18pm UTC](https://community.gemsofwar.com/t/reported-duplicate-champion-in-class-trial-switch/78956/6 "2025-02-13T23:18:09Z")
This week we have another dupe – Emperor Liang’s team occupying both slots #1 and #4:
Same feedback as previous - doesn’t adversely affect playing the mode it just looks bad to see, typically involves slot #4, and the sheer rarity of incidents.
It has been a VERY long time since the last incident (that I’ve seen).