<b_jonas> `` echo $\'#!/bin/sh\\nexec perl -e\\\'\'\'open$I,"<","share/mtg/allsets.txt"or die$!;$/=""; @c=grep{/(?i:$ARGV[0])/}<$I>; print $c[rand($c)];\'\\\'\' "$1"\' > bin/random-card && chmod -v a+x bin/random-card

TG is short for Turing-Gödel, the highest possible level of difficulty for a multiplayer game. At this level, it's undecidable whether you can manage to halt before losing or not.