Sentinel can target both trees and units if you adjust the targets allowed. While the spell effect itself does not work on units, the spell event still occurs.
I just tested Sentinel and tree's can't be targeted once they have a Sentinel. I can easily kill / recreate the tree, but it results in the awkward 'variation' change.
yeah whatever it puts out even if it is not perfect I can fix it and the latest version of chatgpt can create websites from pictures it will not be long until it can do that with almost all the tools
If you're good enough to spot the mistakes of the answers you don't need it in the first place. If you aren't good enough, you're gonna rely on some half-correct stuff