FE Builder Custom Temporary Buff Item

[Khrene Cleaver]

I'm trying to create an item that grants a temporary +6 to Str/Mag/Spd at the cost of 13 damage and 13 max HP. How much assembly knowledge is required, if any? Has anyone done something like this before? Below are a breakdowns my goals for the item.

Main goals:
 

Spoiler

 

- Reduce the user's HP on use, (Easily doable in the [Stat Boosts] Editor, hopefully there's no conflicts with other functions)

- Hurts user upon consumption, like the opposite of a vulnerary.

- Control over potency, duration, and dissipation of the buff.

 

 

Secondary Goals:
 

Spoiler

 

- Compatibility with drop down menu in the [Item "Use" Effect] Editor in FE Builder

- Compatible with FE8 Str/Mag Split. (The buff should boost both Str/Mag equally for GUI/Conveyance purposes, but if that proves problematic for some reason boosting ATK will suffice.)

- Something to prevent overflow if a character's max HP is reduced to less than 0.

       - Perhaps the damage happens first so the character dies?

       - Or the game checks the user's HP like how Juna Fruit or Promo Items check for level? 

 

 

Alternatives Goals:

Spoiler

 

- If there's too much temporarily decreasing defense, resistance, dodge, and avoid instead of hurting the user/costing HP would suffice.

- The user is granted the "Life and Death Skill" for X amount of turns.

 

 

Many Thanks!

Edited August 4, 2020 by Khrene Cleaver
I technically never asked a question, just stated my problem