I forgot to set the actual variable sorry:


Code
on *:text:!GKill:#Kill-A-Gnome:{
  if ($($+(%,gkill,$nick),2) == 1) { msg $chan you already used !gkill }
  else {
    msg $chan Gkill used! boom
    set %gkill $+ $nick 1
    ...
  }
}

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