it was easy and i know that there are many players who could do that but i was the lucky one this time
Edit:
i wasn't prepared for this event. I just hoped that maybe I'll be able to kill 17k sphinx max
that's why i had to change Bon Gilet En Plate De La Vitesse (+5)--->Parfait Gilet Du Semeur De La Mort (+1) on event
i needed agility to kill bigger and it was only way