Edit: Scratch this post, I didn't read properly

Quote:
they type !buy it /notices them the items.. then they type Blue_Potion and it says "you have just brought a Blue_Potion"


You didn't say they had to type !buy blue_potion, but whatever.

on *:TEXT:!buy*:#:{
if ( $2 == Blue_Potion ) {
notice $nick You have bought a blue potion!
}
if ( $2 == Crystal_Blue_Potion ) {
notice $nick You have bought a crystal blue potion!
}
if ( $2 == $null ) {
msg $chan Welcome $nick What would you like to by?
notice $nick Blue Potion 500coins Restores 10HP
notice $nick Crystal Blue Potion 1000coins Restores 50HP
notice $nick Heal Potion 3000coins Restores 150HP
notice $nick Elixer of Heal 10000coins Restores 5000HP
}
}