I immediately tell you the answer of what is the absolute best way to upgrade your Great Hall in RAID and below that I explain the methodology.
The Answer
In the table below I have calculated Efficiency Points. The most effective way to upgrade your Great Hall is to follow the order in this table.
So it would be:
- Rank 1 HP, ATK, DEF, then ACC, then Crit Damage,
- then Rank 2 ACC, then HP, ATK, DEF, Crit Damage,
- then Rank 3 ACC, then Crit Damage, then HP, ATK, DEF and only now Rank 1 Resist
- etc
The best way to upgrade Great Hall: Methodology
As a reminder the bonuses we get from the Great Hall and how many Medals it costs to upgrade:
| Rank | # of Medals needed | # of Gold Medals | HP | ATK | DEF | C. DMG | RESIST | ACC |
| 1 | 50 Bronze Medals | 12.5 | 2% | 2% | 2% | 2% | 5 | 5 |
| 2 | 150 Bronze Medals | 37.5 | 3% | 3% | 3% | 4% | 10 | 10 |
| 3 | 300 Bronze Medals | 75 | 4% | 4% | 4% | 6% | 15 | 15 |
| 4 | 400 Silver Medals | 200 | 6% | 6% | 6% | 8% | 20 | 20 |
| 5 | 500 Silver Medals | 250 | 8% | 8% | 8% | 10% | 30 | 30 |
| 6 | 600 Silver Medals | 300 | 10% | 10% | 10% | 12% | 40 | 40 |
| 7 | 700 Gold Medals | 700 | 12% | 12% | 12% | 15% | 50 | 50 |
| 8 | 800 Gold Medals | 800 | 14% | 14% | 14% | 18% | 60 | 60 |
| 9 | 900 Gold Medals | 900 | 17% | 17% | 17% | 21% | 70 | 70 |
| 10 | 1,000 Gold Medals | 1000 | 20% | 20% | 20% | 25% | 80 | 80 |
To calculate efficiency we also need to remember the bonus we would get from the respective equipment sets:
- For HP the respective set would give +15% HP (Life, Immortal)
- For ATK the respective set would give +15% ATK (Offense, Cruel)
- For DEF the respective set would give +15% DEF
- For Crit Damage the respective set would give +20% Crit Damage
- For RESIST the respective set would give +40 Resistance
- For ACC the respective set would give +40 Accuracy (Perception, Accuracy)
Calculating the Efficiency Points
So we must take into account multiple factors:
- The bonus we get from the Great Hall
- Relate it to the bonus from the equipment sets
- Relate it to the cost of the upgrade. Here it is important to point out that some people, I believe wrongly, recommend to upgrade one element fully and then move on to the other - this completely ignores the greatly increasing cost where one higher rank upgrade costs multiple lower rank upgrades.
Therefore the formula I have used is:
= [ Great Hall Bonus ] / [ Set Bonus ] divided by [ Medals Required ] x 10,000 points
+ Reducing the points of RESIST by 70% to represent it being completely unnecessary until end-game.
This formula determines the benefit we get from upgrading a specific Rank in the Great Hall taking into account the rising costs per rank. (The last part of [ x 10,000 points ] is only there to make the numbers easily digestible otherwise we would be looking into decimal places which many people don't feel comfortable with.)
This methodology results in the table I have shared with you in the beginning of my blog post which guides RAID players to make the most effective choice PER RANK when upgrading their Great Hall.
2 Important Consideration
There are 2 points to consider which has nothing to do with mathematics, but, is still, very important for the game.
Arbiter missions
Firstly, there are missions in the game where RAID players are able to obtain the Arbiter champion and these will force the player to upgrade any ONE element of the Great Hall to Rank 10. We have to do this if we want to get the Arbiter even though this is highly ineffective.
The most recommended element is Accuracy, usually for Magic champions because most players have many more of those types of champions.
Just take a look at your Clan Boss team and pick the Accuracy type which will support your account the most. After this revert back to the most effective way of upgrading as explained in this blog post.
Focusing on specific affinities according to your champions
Something that I have never seen discussed by any content creator or forums: the less champion types you focus on the more effective you can be. Upgrading all 4 Affinities takes a very long time and is very expensive.
If you have, for example, excellent Magic and Force champions then there is no reason you should waste your resources upgrading Spirit and Void. This would literally cut your upgrade cost in half.
You would have significant bonuses for the best champions you have which would bring you many more rewards in RAID. And later on you can expand to the other Affinities.
Conclusion
- When upgrading your Great Hall in RAID Shadow Legends we have to take into account also the cost per Rank. It's not "upgrade one thing then another".
- We have to make 1 exception and fully upgrade Accuracy of 1 Affinity for the Arbiter missions.
- If you have a concentration of powerful champions in 1-2 Affinities consider ignoring the other Affinities.
- Other than these considerations the best way to upgrade your Great Hall in RAID is to follow my "Efficiency Points" table.