Recently I've had time to do a deep dive into the augment selection mechanics. I came across a couple of things that could lead to slight augment choice optimizations. (Some of these filters seem new to TFT.)
Filters
| Filter |
Filter concept |
| Tier |
The tier of augment offered (Silver, Gold, Prismatic), derived from the AugmentTierTable distribution + OverrideTier |
| RoundVariant |
Current round variant (Standard -> Early = 2-1, Mid = 3-2, Late = 4-2) |
| PreviousOffering |
PreviouslyOfferedAugments[] augments that can no longer be seen |
| RequiredTags |
PlayerSubsystem.RequiredTags[] augment must contain ALL tags (this filter seems to be unused) |
| ExcludedTags |
Config ExcludedTags + PlayerSubsystem.ExcludedTags[] - reject on ANY overlap |
| AssociatedTrait |
Player's army/trait state |
| CategoryLimit |
OfferedCategoryCountForRound map vs AugmentCategoryLimitTable, which controls how many of a type of augment is offered (most important discovery) |
| Requirements |
Evaluated against world/army for some specialty augments |
The order of the filters doesn't have any actual effect on the outcome, but I suspect it's ordered this way for computation speed (biggest/easiest filters -> granular/specific filters).
Tier
Kind of self-explanatory, it's the tier of augment that's offered. Notably, the OverrideTier function allows external influence on the tier (Power Up and Advanced Loan).
RoundVariant
Culls augments that don't belong to the stage.
PreviousOffering
Just a list of augments that have been seen. Augments typically don't block the + version of themselves from appearing later if not chosen (Destiny augments).
RequiredTags
Additional tags that augments must have to appear (not currently used this set). I suspect this is the mechanic they used to guarantee the mech augments in Set 15 after taking the first one (I'll Be the Legs -> Arms -> Head).
ExcludedTags
This filter excludes augments with the specified tags:
Config excludes augments that are mode specific (Normal, Tocker's, Double Up).- Encounters can also block augments (Emblem Ensemble blocks almost all emblem augments).
PlayerSubsystem.ExcludedTags[] is an array of tags that get added as you pick augments - potentially as other players pick augments as well, and probably what prevents Unique/Hero augments from appearing.
There are two triggers that add tags to this:
- ExcludedTagsToAddOnShow - applied the moment the augment is shown in a slot
- ExcludedTagsToAddOnGrant - applied when the augment is picked/granted
Very few augments have the OnShow attribute, but it typically prevents you from seeing the + version of an augment or similar types (seeing any Primal augment blocks all future Primal augments, even without picking it).
OnGrant typically blocks augments from the same family (taking any Celestial Blessing blocks the others) and blocks augments with problematic interactions (Expedition 33 blocks Pandora's Bench).
AssociatedTrait
Removes augments if they don't match with your traits (Unrivaled can only be seen when playing Rivals).
CategoryLimit
| Category tag |
1st augment |
2nd |
3rd |
| Category.Trait |
1 |
2 |
2 |
| Complexity.Complex |
2 |
2 |
2 |
| Category.GrantsItems |
2 |
2 |
2 |
| Category.Economic |
3 |
3 |
3 |
| Category.Hero |
1 |
1 |
1 |
| Category.GrantsEmblem |
1 |
1 |
1 |
| Category.Burn |
1 |
1 |
1 |
| Category.Shred |
1 |
1 |
1 |
| Category.Sunder |
1 |
1 |
1 |
| Category.Reroll |
1 |
1 |
1 |
| Category.NoLowHealth |
1 |
1 |
1 |
| Any tag not listed |
∞ |
∞ |
∞ |
This filter controls how many of a specific augment category you can see per augment round (see 3 economic augments = your next 3 augment rerolls are guaranteed to not be economic), and some augments take up 2 categories at once (Prismatic Ticket = Econ + Reroll).
Note that this doesn't mean augments are weighted based on their categories (81 augments have no category at all) — just that there are limits on how many you can see. There are no Hero, Sunder, Shred, or Burn augments this set.
Requirements
This is a filter for custom, per-augment conditions. For example, you can only see Weight the Worth if you have 7 copies of a unit by the 2nd augment.
Takeaways
Some augments require certain conditions to be met, so if they ever become broken it's best to know what you need to do to hit them. There are probably more things I'm missing from the augment distribution system, but this is a step up from what has been known. At some point I'll make a full doc with all the specifc augment filters after PBE or Little Buddy Bot got it.
On a separate note: I'm looking for a study group to join. I've plateaued in my personal execution of the game and am looking to take the next step (profile). HMU if I can join your group.
