So meditate about it a bit more. In the

for $var (1 .. 10)
[download]

The C-style for loop, on the other hand, is just a while loop in a disguise. All the three constructs in the parentheses are just expressions, i.e. you can use multiple variables there, as in

my ($i, $j);
my $k = 15;
for ($i = 1, $j = 0; $i + $j < $k; $j = ++$i - rand 2) {
    print "$i $j\n";
}
[download]

or you can use no variables at all

#!/usr/bin/perl
use warnings;
use strict;
use feature qw{ say };

{
    my $var;
    sub init { $var = 0 }
    sub following { ++$var }
    sub exhausted { $var > 10 }
    sub get { $var }
}

for (init(); ! exhausted(); following()) {
    say get();
}
[download]

So, there can't be any implicit localization, as there's nothing in general to localize.

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,
[download]