There were only 13 Commander decks released in 2025, with Aetherdrift and Edge of Eternities only having two decks each
The combination struggles with lifegain, as White provides most of that effect
Still, it would be a disservice to an immensely powerful card to besmirch his name with a lower ranking for those who dont mind being the archvillain
Equip abilities being used at instant speed and paying zero for the first equip ability are both awesome, but being able to bring back an Equipment from the graveyard and put it onto the battlefield when it enters the battlefield is really what pushes it over the top
Plus, drawing an extra card whenever Yuriko, the Tiger's Shadow deals damage is extremely powerful (and even better if you have additional Ninjas)
The thing with Courser is that it is just so good, you would play it in most decks even without any life gain