In grid play, Cloud of Daggers can affect 1-4 squares as you choose an intersection of squares as the point of origin of an area of effect, which lies anywhere on a face of the cubic effect as per the rules.
Also per Sage Advice Compendium;
I'd say about 1% of the population in my campaigns are spellcasters, meaning a thorp don't likely have any, a small village might have 1 or few, a city a couple and larger town many.
Oath of the Ancients 25
Oath of Conquest 12
Oath of the Crown 11
Oath of Devotion 26
Oath of Heroism 1
Oath of Redemption 16
Oath of Vengeance 22
Oath of the Watchers 18
Interesting news! There's this D&D Documentary in the past that looked good but i don't know if it was ever released finally
PS There's this one too that looked good
Oath of the Ancients 28
Oath of Conquest 19
Oath of the Crown 18
Oath of Devotion 24
Oath of Glory 6
Oath of Heroism 12
Oath of Redemption 18
Oath of Vengeance 21
Oath of the Watchers 19
Oathbreaker 8
Oath of the Ancients 26
Oath of Conquest 19
Oath of the Crown 17
Oath of Devotion 21
Oath of Glory 14
Oath of Heroism 16
Oath of Redemption 23
Oath of Vengeance 19
Oath of the Watchers 21