Many green removal spells cause two creatures to fight each other, but this is one of the few that deals damage
The tempo from Confidant is poor and the returns are slow
If you looked at it on the extreme end, that number could be well north of a billion dollars. Thats the scale of whats being caught using increasingly sophisticated grading tools
Vintage as a format doesn't have a huge amount of large competitive events and thus being able to make ad-hoc changes like this can be good for this format instead of sitting on things like Karn/Narset, etc
It will be neither day nor night until a player controls a permanent with daybound or nightbound, or a spell or ability says "it becomes day" or "it becomes night." You can destroy the initiative designation with Naturalize 2
Also, the crocodile on this Duelist Construct's back is based on Shirley, Jim's pet crocodile in the GX anime series