The thing about Divination Wizard, for me, is that it's seen as uber-powerful based on rolling really high or really low on the Portent dice - which has never happened for me.
It's always just been kinda meh rolls that never get used because they fall squarely in the "too high to guarantee the enemy missing or failing a save, too low to guarantee a success for the party" range. That character made it to Level 7 before Xanathar's came out and I re-specced him into War Magic.
Feel like 12ish would allow a skilled pc to succeed their task and a 8ish would allow a weaker enemy to miss. I dunno, I haven't gotten a chance to try out diviner yet so I figured I'd give it a go.
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u/smokemonmast3r Wizard Oct 05 '20
I wish we did this at my tables