It is the apocalypse after all.

C-DudeYes, Gi is correct, a custom event that triggers some assembly code would work much better.  I shouldn't have sent you astray the way I did, Masiur was right to begin with.
I've never coded something like that before, so you're going to be the guinea pig.

Code:

Custom Event $A4            (Inventory Flush) [This custom event command takes no arguments]
[I chose $A4 because event bit $0A4 means the game is in the World of Ruin.  It's an easy way to remember which event got used for this]


POINTER
C0/99A2:    83 DF        (act. A4: ** NOT USED **)        [Was 1A B9]


COMMAND
C0/DF83:    [Was Freespace, 29 bytes used]
A6 00        LDX $00        (Load X with $00)
A9 FF        LDA #$FF        (Get an "empty" item)
9D 69 18      STA $1869,X     (Put it in inventory at X)
E8          INX                (Increment X)
E0 00 01      CPX #$0100        (Is X over 256?)
D0 F5        BNE $AD2F        (If not, branch -> get the next item)
C2 21        REP #$21        (16 bit accum./memory)
9C 60 18    STZ $1860        (Zero the low byte of GP)
7B          TDC             (Clear the accumulator)
E2 20        SEP #$20          (8 bit accum./memory)
9C 62 18      STZ $1862        (Zero the high byte of GP)
A9 01        LDA #$01        (Advance the script 1 place, as our command has no arguments)
4C 5C 9B      JMP $9B5C

    RAW HEX FOR COMMAND CODE
    C0/DF83:
        A6 00 A9 FF 9D 69 18 E8 E0 00 01 D0 F5 C2 21 9C 60 18 7B E2 20 9C 62 18 A9 01 4C 5C 9B
    
    
EVENT HOOK  [Unchanged from earlier post]
CA/530C:
    B2 01 AF 24            [Go to subroutine EE/AF01 (which is unused space in Vanilla)]


EVENT SUBROUTINE
EE/AF01:
    88 06 00 00            [Clean Celes's statuses (displaced vanilla code)]
    8D 06                [Unequip Celes]
    A4                    [Run Custom Command to flush inventory]
    FE                     [Return to sender]

    RAW HEX FOR EE/AF01 SUBROUTINE
    88 06 00 00 8D 06 A4 FE

[i]


I am definitely going to use a fresh rom. But before I do, I just want to make sure I am processing the information correctly.

Step 1: C0/99A2 - $C00000 = 99A2 = write the new pointer change: (WAS 1A B9, NOW IT'S 83 DF)

Step 2  C0/DF83 - $C00000 = DF83 = write the new raw hex code in that offset.
                                 
Step 3: Re-write the A530C & 2EAF01 code as they remain unchanged.

Correct?