"The cloud moves 10 feet directly away from you in a direction that you choose at the start of each of your turns."

So which is it, directly away from you, or in a direction that you choose?

I believe it means that you pick which way it goes, it just has to end farther away from you than it started.

Cloudkill but for grownups. 

I'm reading it as "In a direction you choose, as long as it doesnt come near you"

The question is, Can I Kite the Cloud into staying in the same spot if I move fast enough?

If the way that Yggi and I are reading this (which seems to be the same) is correct, then yes.

Let's say turn A you send it west. Then if you can use your movement to get on the west side of the cloud before the start of turn B, then you can send it back to where it started on turn B. Rinse repeat, and you have the cloud going back and forth each turn.

Personally, our table just has it roll back and forth through the bars of a Forcecage and not necessarily away from the caster, slowly roasting whoever is inside while everyone else swiftly murders any lesser beings the party wizard deigned to let outside the cage; our rationale is that a 15th+ wizard probably has some modicum of control over the precise positioning of their spells.

Of course, this only works once per day, but it's still a pretty good combo. (Anything involving a Forcecage is a pretty good combo).

Quote from MiniDeathStar >>

Cloudkill but for grownups. 

 lol

why don't druids have this in their list 

It was added to their list with Tasha's if you use that 

Pyroclastic flow would be more appropriate

White Phosphorus attack

"A creature must also make this saving throw when it enters the spell's area for the first time on a turn or ends its turn there."

So, "or" means "or" here, right? As in, 'either'. A creature doesn't have to save twice in a turn if it both enters the area and ends its turn there?

Apparently this spell can be dispersed with a Gust of Wind.  Not a fan of a 2nd level spell automatically defeating an 8th level one.

nice!