As for Arcane Artisan, I used to like it mostly as an enabler that dodged some of the hate-cards such as Containment Priest, as well as providing a non-symmetrical Show and Tell effect
This was later vindicated with the commander decklists having been spoiled as I was writing this
Kardur, Doomscourge is the only Goad-like effect that affects those creatures, so playing against a haste-happy opponent can be trouble
Everything radiates from the center: the light, the branches, even the roots
The second choice seems the more useful option, but the two cards from the top can be good in certain scenarios
By the by, she's also one of the engines that makes my Equinaut deck run, so I have played a veritable ton of cards with her over the years in the same deck