Staff of Thunder deals approximately 1.33x more damage than Electro Attack. You should be able to kill Bears with around 840 MA, and Kerbs with around 550 MA. I might do a more precise test when the opportunity arises soon.
Recette - Witch 400 | EmiriTachibana - Diva 400 | SakuraHiiragi - Champion 35x | AnaJessicaAyano - Soul Master 26x | LeslieSun - Witch 26x
Bye Bright Shadow Japan, I will miss you all and my bunch of characters very much ~~