Mulligan settings and priest logic

Hi guys, i have a question about the mulligan settings, which decides what card he keeps or replaces before the 1st turn.
For Example i would like to configurate the bot so, that he doesnt keep "Shadow Word: Death" because i dont think, that you will need it in early, even if its a 3 - Mana Card. So can i add global rules or priest rules somewhere?
Also when the bot has "Holy Champion" on his bord, he ALWAYS attacks goes face first, and heals something after that. Mostly its not the biggest problem, but it can decide about win or loose. And i dont see any reason, why it should be better to attack first, since heal gives the Holy Champion more attack.

I use everything on default settings till now

So is there a way to set sth. like this up?

Thank

 

to Eisklotz

To create mulligan rules you can use the Visual Mulligan Editor

 

oh nice, thank you
I didnt know about that