The tough, hardened glass of this item will withstand the magic of Marsh Fireballs. In this vessel there is not a single Flamer, so it is of no use to the Hisser. You should go to the swamp and, after killing several Flamers (10) <a class="img-link" target="_blank" href="/bot_info.php?artikul_id=168"><img src="/images/player_info.gif"></a>, put them in the jar.