Re-roll all / part 2

[Darkundo]

If i choose to reroll all of my attack dice with Doctor Strange Supreme Sorcerer, do I get to reroll also the extra dice from crits?

For example:

I attack with his builder, and get: crit, crit, blank, blank, shield. I roll the crit's extra dice, and get 2 more blank. 

Now, do I reroll 5 dice or 7 dice?

[Negoldar]

The extra dice from resolving Criticals become part of the roll so an effect that allows a character to reroll all dice will include them. 

In your example, 7 dice. 

[Darkundo]

And, I do not get extra dice for re-rolled crits, right?

[Negoldar]

1 hour ago, Darkundo said:

And, I do not get extra dice for re-rolled crits, right?

Right. Rerolls happen in step 9 of the attack chart. Additional dice from Criticals are added in step 8.