It pops up in Modern from time to time alongside Goryo's Vengeance, but its primary home is in Legacy, with decks like Sneak and Show and Reanimator abound
The ninja frame seems to play into the more modern, technological part of the sets lore, whereas the ropes on the samurai frame seem to hint towards the more traditional, spiritual parts of the plane
I could see myself targeting my own creature
Building a deck from 100 cards and no duplicates allowed, barring very rare exceptions such as Relentless Rats with one Legendary Creature as its Commander (hence the formats current name), its a format that allows for some genuinely exciting deck construction and inventiveness, not to mention a great deal of experimentation
The staff rocks, the selection is great, and they've been VERY supportive of our efforts to build a Crisis Protocol community here