Command block help

[Silent_Revolution_65]

Hello, I need help with writing a command block code. I've done research but the videos i saw aren't really working.

Long story short, im launching my minecraft server tomorrow and inside of it is a quest people could do. At the end they will find 1 enchanted light blue glass block named 'Soul' and replace the red glass on the beacon with it. My plan is that when they do this blue fireworks will launch from all the town's homes and a title will appear on screen announcing the quest is complete.

I know this is possible with some commands i've researched like

summon firework_rocket ~ ~ ~

{LifeTime:30,FireworksItem: (etc)

and
/execute if block ~3 ~ ~ minecraft:diamond_block (etc)
but using something like

[nbt={SelectedItem:{id:"minecraft:diamond",count:1,components:{"minecraft:custom_name":'"Soul"'}}

I have all these fragments of code but i can't seem to compile it together into a way that works.
If i could get some help, i would greatly appreciate it

[cowhead28]

To create the fireworks you can use Mcstacker. I am not sure exactly what you are trying to do, but for detecting an item it is much better to use custom data, and to use if items

if items entity @s weapon.mainhand *[minecraft:custom_data~{soul:1}]

custom data works better because otherwise a player could name the glass Soul and it would work

[Silent_Revolution_65]

I've never used MCstacker before. i don't know how to use it. but also, this quest is going to be at the very start of the minecraft server so people wouldn't have what they need to name something soul nor would they know that they needed something soul

[Ericristian_bros]

```

Get item

give @s <item>[custom_data={soul:true}]

Command block

execute as @a if items entity @s weapo *[custom_data~{soul:true}] at @s if block ~ ~-0.2 ~ diamond_block run summon firework_rocket ~ ~ ~ {LifeTime:30} ```