In order to kill the guardians at the gate they must first say An Sanct Flam in front of the guardian to want to attack to get rid of the grey flames first. If you attack the guardians at the gate without dispelling the flames in front of that paticular guardian then it will summon Demon Berserker. If you extinguish the flames first then no berserker gets summoned. The grey flames do come back so you have to say An Sanct Flam each time you see the grey flames at the guardian you want to attack. Sorry forgot to mention... in order for the word to work I believe you must be GM Magery or higher.