Can't set blocks in a variable

[AgentGamerPro]

I'm making something like worldedit, but not at the same time. Anyway, for some reason i can't set blocks in a variable. No errors, but it just don't work.

Part 1 of skript:

Spoiler

on script load:
    clear {Setblocks}
    wait 0.25 seconds
    add stone, andesite, and polished_andesite to {Setblocks}

Part 2 of skript:

Spoiler

        else if arg-1 is "block":
            if arg-2 is not set:
                send "&c&lSkymine: &cSet your block (if block is multiple words use _, ex. oak_planks)" to player
            else if arg-2 is set:
                if {Setblocks} contains arg-2:
                    set {block.%player%} to arg-2
                    send "&c&lSkymine: &cBlock has been set!" to player
                else:
                    send "&c&lSkymine: &cBlock does not exist. Has it been spelled correctly?" to player

I am very confused on this. Anyone that can, please help, i appreciate anything i can get.

[_Tarna_]

Since you are adding multiple things to a variable and using contains, you need to use a list variable. Like {var::*}

add stone, andesite, and polished andesite to {Setblocks::*}

if {Setblocks::*} contains arg-2: