Here is my new Character a female elven Enchantress/Sorceress after having finished the Trial of the Elders where she killed the Elder Kyusho (669.900XP), the Banshee (466.558XP) and the Elder Master (810.550XP). Unfortunately, the Wizard in the fourth room disappeared before she could kill him
Anyway, entered the Trial at Level 9 and left at Level 12
Note that she is using a Staff of Burning.