Eirika Replacement ramdomly having 8 skills at start?

Smarco12 · February 16, 2026, 6:37pm

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Hacking method: FEBuilder

Base Game: Fire Emblem: The Sacred Stones

Steps to reproduce: Essentially, I’m making a mod for FE8 which swaps around every base-game character with original ones. I’ve made my replacement for Eirika and given her (and her classes) the following flags: Female (on Eirika’s unit), Lord Unit (on her classes) and Monster Weapons/Eirika Lock (on her classes so that she can use a unique prf fist weapon that counts as a dragonstone/monster weapon). Now, I have Skill Systems patched onto my Rom, and at level 1 the Eirika replacement should only have access to Pass and Supply (gaining Double Lion at level 10), but for whatever reason she also has SPD +2, Return, Spectrum Initiative, Divine Reprieve and Grounder (on top of her three natual skills, at LEVEL 1). ALSO, for whatever reason, as a turn action she can use Black Magic (even though I only gave her Anima magic access) and her Black Magic is, for whatever reason, a -2 durability Killing Edge.

Essentially, I want to find a way that she can keep her flags (so she can still be a Lord, Female and use her unique prfs), but I also want so that she keeps her normal skills. Help.

Starshadow_Melody · February 16, 2026, 6:43pm

C-Skillsys gives Eirika a bunch of random shit by default for some reason. You’ll have to change them manually.

Smarco12 · February 16, 2026, 6:47pm

I don’t know how much I’ll have to change, because if I look at the “Assign Skill by Unit/Class” editors, it only shows Supply (as Eirika’s inherent personal), Pass (as Lord’s inherent skill) and Double Lion (which Lord gets at level 10).

Starshadow_Melody · February 16, 2026, 7:09pm

there’s more editors.

Smarco12 · February 16, 2026, 7:25pm

I looked through the different editors and the killing edge thing is because of Gaiden-style Spells so I fixed it, but I still don’t know exactly what’s causing the skills to be messed up. I still think it has something to do with the ability flags since Grounder only got added AFTER I mage the Lord capable of using monster weapons, but then I don’t know how I cange the skills available without changing the flags I set up.

Yasako · February 16, 2026, 7:27pm

If you’re installing skillsys it’s probably best practice not to use the check boxes for locks and flags and to separately install the related patches/reworks for them.
Weapon Lock Array is the one I know the actual name of, but you can search “female” and “lord” for the others (and in fact I believe Weapon Lock Array is used for both of these).

Managing compatibility is easier in the skillsys buildfile imo but that comes with its own set of problems (if your eyes glaze over at walls of text it’s… not great).

A lot of these bugs happen because of the way data is packed in these ROMs, so clicking on the address links in the GUI related to a given problem will help you search for the origin. This is helpful for future troubleshooting.

For example, Gaiden Magic likely points to a specific item ID for a given spell, and in this case it landed on the Killing Edge, which has some data attached to it that doesn’t get used in Gaiden Magic (namely the durability). The durability bits are then converted to whatever it’s got going on.
edit: no it points to something else but it got jumbled up into the killing edge lol. Idk I haven’t tried using gaiden magic

Smarco12 · February 16, 2026, 8:50pm

For whatever reason, FEBuilder doesn’t let me write in WeaponLockArray SkillSystems because “the following prerequisites are not met” (though it doesn’t give any prerequisites).

Yasako · February 16, 2026, 10:35pm

Apparently it’s already included?
Actually which version of skillsys did you even use lol

Mokha · February 17, 2026, 12:15am

github.com/MokhaLeee/fe8u-cskillsys-kernel

docs/SkillSys.md

main

# 1. Overview
- Supports characters gaining skill effects through their character index, class index, and items.
- Supports **BattleUnit** gaining skill effects through equipped weapons and shields.
- Some skills can be dynamically acquired (dynamic skills), allowing characters to gain dynamic skills when loading, leveling up, or promoting. Developers can also give and remove dynamic skills to units via events.
- Players can freely equip or unequip dynamic skills in the prepscreen (FE16 style).

# 2. Skill Partitioning
Unlike the old system, **cskillsys** expands the skill ID range to 0x400. The currently valid skill ID range is `0x01~0xFE, 0x100~0x3FF` (up to **1021** skills in total).
With such a large number of skills, partitioning is necessary to save space and improve performance. Some skills enjoy special effects:

- `0x001-0x0FE` **Dynamic Skills**: Only this category of skills can be freely equipped and unequipped.
- `0x300-0x3FF` **Item Skills**: Only when items hold this category of skills can they take into effect.

Other skills are categorized as **generic skills**.

# 3. Setting Skills (CHAX New List)

## 3.1 Fixed Skills
1. Fixed skills can be assigned to characters via [`gConstSkillTable_Person`](../Data/SkillSys/SkillTable-person.c) or [Skills person table patch](../Patches/PATCH_Skills_Person.txt), with each character being able to hold up to **2** fixed skills.
2. Fixed skills can be assigned to classes via [`gConstSkillTable_Job`](../Data/SkillSys/SkillTable-job.c) or [Skills job table patch](../Patches/PATCH_Skills_Job.txt), with each class being able to hold up to **2** fixed skills.

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read the docs before you use the cskillsys as it holds a lot of configurable new features. The FEB old skill list is just part of its list.

Smarco12 · February 17, 2026, 1:20pm

THANK YOU. I’d never know those menus were just in the piles and piles of patches that come with FEBuilder.