Normally, monsters can be lured 50 squares from their spawn, and raid monsters can be lured without restrictions.
Bosses like Midnight Panther or Orshaabaal, monsters that spawn from quests and monsters from raids are not restricted.
I'm not sure but i think it also works on roshamuul when you spawn Guzzlemaw from horns then you can lure it without "poof".
Source TibiaWiki.