[ASM & Hex] Help with buffering health and status effects in a new ability

[Lumaris]

Hello! I am working on my first rom hack and trying to create a new ability but I am running into a problem.

I am creating an ability called Molt which restores 20% and cures all status effects upon switch out. Basically it is a combination of regenerator and natural cure. Conveniently MrDollSteak has provided the code for regenerator (I would link it but it won't let me) which I started building off of.

Obviously just adding an update to the status effect doesn't do anything since it needs to be buffered,

Spoiler:

.text
.align 2
.thumb
.thumb_func
.global regenerator
 
AbilityBuffer:
	add r0, r1, r3
	add r0, #0x20
	ldrb r0, [r0]
RegeneratorCheck:
	mov r2, #0x1E
	cmp r0, #0x51
	beq AddHP
MoltCheck:
	mov r2, #0x12
	cmp r0, #0x57
	beq Molt
NaturalCureCheck:
	cmp r0, #0x1E
	bne NoAbility
NaturalCure:
	ldr r0, .Return
	bx r0
NoAbility:
	ldr r0, .Return2
	bx r0
Molt:
	push {r0-r6}
	add r3, #0x4c	
	add r1, r1, r3
	mov r0, #0x0
	str r0, [r1, #0x0]
	pop {r0-r6}
AddHP:
	add r3, #0x28
	add r3, r1, r3
	ldrh r0, [r3, #0x4]
	mov r1, r2
	mul r0, r1
	mov r1, #0x5A
	push {r3}
	bl Divide
	pop {r3}
	ldrh r1, [r3]
	add r0, r0, r1
CheckHP:
	ldrh r2, [r3, #0x4]
	cmp r0, r2
	ble StoreHP
MaxHP:
	mov r0, r2
StoreHP:
	strh r0, [r3]
BufferHealthChange:
	ldr r2, .CommandTable
	ldrb r1, [r4]
	ldr r0, .RamLoc
	ldr r0, [r0]
	add r0, r1, r0
	add r0, #0x58
	ldrb r0, [r0]
	lsl r0, r0, #0x2
	add r0, r0, r2
	ldrb r2, [r0]
	mov r0, r1
	mul r0, r6
	add r0, r0, r3
	str r0, [sp]
	mov r0, #0x0
HealthChangeIndex:
	mov r1, #0x2A
Success:
	ldr r3, .Return3
	bx r3
Divide:
	ldr r3, .DivideLoc
	bx r3
.align 2

.Return: .word 0x0802CCE7
.Return2: .word 0x0802CD1B
.CommandTable: .word 0x0825E45C
.RamLoc: .word 0x02023FE8
.Return3: .word 0x0802CD0F
.DivideLoc: .word 0x081E4019

but I cannot seem to find any documentation about how the buffering system works to be able to modify it. Has anyone done anything like this or know any resources I can look at to try and get this to work?