# Ether farming evidence

Checked 2026-10-05. Installed Steam demo build 24032336. Enemy drops and passive requirements were checked against native data. The Fina + Tronn farming setup is player-reported. No timed route comparison, Ethers-per-hour measurement or in-game reproduction of the video loadout was performed.

## Item and drops

- `DT_ConsumablesItemData`: item 3, Ether, restores 50 MP; base buy price 500 gil. A base price alone does not establish a reachable shop.
- `DT_UnitParameter`: Mage 48, Aqua Elemental 51, Green Slime 9 and Shadow 27 have normal drop item 3 with rate denominator 8. Ghost 43 has normal drop item 3 with denominator 12.
- The native drop handler at `0x144fa02a0` calculates `100 / stored rate` and adds an eligible drop bonus before comparing with its random roll. The division is at `0x144fa047d`. Denominator 8 therefore means 12.5%; denominator 12 means approximately 8.33%. These are base thresholds, not measured session yields.
- Exact variants matter: Mage 48 is level 10; Goblin Mage 76 is level 21 and is not the demo tower recommendation.
- Mage, Shadow and Ghost are weak to Ice/Light. Aqua Elemental is weak to Lightning and nullifies Water. Green Slime is weak to Lightning, with Stamina 100 and Spirit 1.

## Repeatable area encounters

Area tables were decoded read-only with the existing `ENCOUNT_GROUP_DATA` schema; each decode consumed all row bytes to the expected table footer.

- `Datatable/Encount/02Lan/DT_02Lan_Dng_40_01_Encount`: groups 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1067, 1068.
- `DT_BattleGroup`: group 1055 contains Green Slime 9 twice and Mage 48 once; group 1056 contains Aqua Elemental 51 twice and Mage 48 twice. Other listed tower groups also contain Ether-dropping enemies.
- `DT_MapData_02Lan`: map 3030 is Siren's Tower, with movement encounters enabled.
- `Datatable/Encount/03Kol/DT_03Kol_Dng_40_01_Encount`: groups 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1065, 1066. Groups 1045, 1047, 1048 and 1050 contain Ghost 43.
- `DT_MapData_03Kol`: map 3040 is Kolobos Ruins, with movement encounters enabled.
- `Datatable/Encount/03Kol/DT_03Kol_Wld_03_Encount`: groups 1038 and 1039 contain three and two Shadow 27 respectively. Groups 1039 also occur in `DT_03Kol_Wld_04_Encount` and `DT_03Kol_Wld_05_Encount`. These confirm Kolobos overworld encounters, not an exact coordinate beside the ruins entrance.

The guide does not claim a particular floor has better encounter odds, does not assign a percentage to encounter weights, and does not claim a measured fastest route.

## Fina + Tronn sustain requirements

- Tronn is Vision 13024 and supplies Fire, Blizzard and Thunder.
- Restore MP on Stagger, passive 1281, restores 5% of maximum MP when the user staggers an enemy. It is Tronn's character-specific Mastery Rank 1 reward (10 MRP); Fina must reach that rank herself. It costs 20 capacity when learned and equipped separately, or is free while the mastered Tronn is equipped.
- Victor's Respite, passive 1407, restores 5% of maximum MP at battle end. It is an awakening unlock, rather than a mastery reward. Keep awakened Tronn equipped to receive its free effect.
- Sustain depends on refunds meeting the actual MP spent. Stagger recovery is conditional; possession of an unmastered, unawakened Tronn does not establish an indefinite farming build. The higher mastery rewards, including Half MP Cost, are not presented as demo options.
- The player report uses all-target Fire. The native enemy weaknesses do not support recommending Fire for every pack; Shadow and Ghost are weak to Ice/Light.

## Finite chests and shop scope

`Datatable/Map/Gimmick/TreasureBox` records:

| Row | Map | Ethers |
| --- | --- | ---: |
| Town_01Gra_20_0 | Mitra 2000 | 1 |
| Town_01Gra_20_4 | Mitra 2000 | 1 |
| Dng_01Gra_43_1 | Earth Shrine entrance 3001 | 1 |
| Dng_03Kol_40_3 | Kolobos Ruins 3040 | 2 |
| Dng_02Lan_40_4 | Siren's Tower 3030 | 1 |
| Dng_02Lan_40_5 | Siren's Tower 3030 | 2 |

These are recorded chests, not an assertion that chests respawn. The conservative Chapter 1 shop IDs used in the existing demo-availability audit contain no Ether; later stock and generic shop 0 are not evidence of demo availability. No Steal ability is required for the recommended route.

## Community corroboration

[Player discussion, September 2026](https://www.reddit.com/r/FinalFantasyResonance/comments/1wh0gt0/ok_i_think_im_done_now/) includes a player farming Siren's Tower for Ethers, Phoenix Downs and Water Scroll I. This supports practical use of the area; it does not establish a drop percentage or optimal hourly yield.

[We Out Here (Farming Ethers), September 28](https://www.reddit.com/r/FinalFantasyResonance/comments/1ws0e0u/we_out_here_farming_ethers/) discusses farming outside Kolobos Ruins using Fina's all-target Fire and Tronn for MP recovery. The comments favor this setup for sustained farming; their claims about never needing recovery are not independently measured here.

[Creator's farming post, September 18](https://www.reddit.com/r/FinalFantasyResonance/comments/1wjte5h/ethers_farm_without_needing_to_visit_inn_for_hours/) links [SOLO FINA BUILD - Final Fantasy Resonance Best Demo Farm Guide - No inn, 17k Gil/Hour + Ethers](https://www.youtube.com/watch?v=btu7SDb44z4). The public video description says the build farms Ethers and gil for extended periods without inn visits. Its title's 17k gil/hour is the creator's claim, not a verified yield. The post and public metadata were read; video playback and captions were unavailable, so no claim about the complete demonstrated loadout is made.

## Community resource listing metadata

Added to the guide's community resource list on 2026-10-06. Creator names and posted dates are taken from each public YouTube watch page's `videoDetails.author` and `microformat.playerMicroformatRenderer.publishDate` fields, read on 2026-10-05. Reddit post dates were checked in the indexed public threads on 2026-10-06; the listing credits their subreddit community rather than assigning the discussion to an unverified individual author.

| Resource | Creator / community | Posted | Added |
| --- | --- | --- | --- |
| [Where to Farm Ethers!](https://www.youtube.com/watch?v=DAQ2uOnCzlk) | Sol Invictus | 2026-09-07 | 2026-10-06 |
| [Solo Fina farming build](https://www.youtube.com/watch?v=btu7SDb44z4) | Walley Li | 2026-09-18 | 2026-10-06 |
| [Ether farming locations and Fina + Tronn discussion](https://www.reddit.com/r/FinalFantasyResonance/comments/1ws0e0u/we_out_here_farming_ethers/) | r/FinalFantasyResonance | 2026-09-28 | 2026-10-06 |
| [Solo Fina build discussion](https://www.reddit.com/r/FinalFantasyResonance/comments/1wjte5h/ethers_farm_without_needing_to_visit_inn_for_hours/) | r/FinalFantasyResonance | 2026-09-18 | 2026-10-06 |