Keeper of Night, PMJ lets DNA host them sometimes I think. You don't have to be it's just most of the time PMJ and DNA are doing it. I think Riskbreakers too? Just talk to PMJ if you want to do it eventually.
I just had the following conversation with my dad:
"When's your tournament?"
"16th?"
"You should ask my parents."
"They're out of town."
"Oh, forget it then."
Zeels is good.
Durant is finicky and i can't judge it yet.
And my opinion on Zach's conversation with you:
Play what you feel is best and then see how it does. If it does bad, don't play it again. If it works, great.
From what I've learned about rogues it's that it really isn't ever a good idea to take them to large tournaments. Now, I recommend trying Speedrai first and then Klinklang because frankly, damage block or no damage block, Klinklang is a stage 2 deck and abut less reliable than Darkrai.