Custom Prefix & Default Prefix + Alias (with Slash Command) with multiple arguments

$var[CustomPrefix;$getServerVar[BotPrefix]]
$var[DefaultPrefix;$getVar[BotPrefix]]

$var[cmd;$toLowercase[$message[1]]]
$var[args1;$toLowercase[$message[2;item]]]
$var[args2;$message[3;amount]]

$if[$isSlash==false]
$onlyIf[$or[
    $var[cmd]==$var[CustomPrefix]item-buy;
    $var[cmd]==$var[DefaultPrefix]item-buy;
    $var[cmd]==$var[CustomPrefix]buy;
    $var[cmd]==$var[DefaultPrefix]buy
]==true;]
$endif

$onlyIf[$message[2;item]!=;You must input an item.]
$onlyIf[$or[
    $var[args1]==armor;
    $var[args1]==helmet
]==true;Item not found.]
$var[item;$toTitleCase[$message[2;item]]]

$if[$var[args2]==]
    $var[amount;1]
$elseif[$var[args2]!=]
    $onlyIf[$isNumber[$var[args2]]==true;You must input a number.]
    $onlyIf[$var[args2]>=1;Invalid amount.]
    $onlyIf[$var[args2]<=100;Exceeded maximum amount, max is 100.]
    $var[amount;$var[args2]]
$endif

You successfully bought **$var[amount]x $var[item]**.