Thats how youll play this card in most scenarios
If you don't control an Army, create a 0/0 black Orc Army creature token first.) Activating Corsairs of Umbar's first ability after a Goblin, Orc, or Pirate has become blocked won't cause that creature to become unblocked
My only issue here is that their foes control the stacking, so you only choose which one to draw
Ninjas are one of the most interesting creature types in all of MTG
The other alternative is hosting all the art you want somewhere publicly accessible (AWS S3, a webserver, Google drive, etc.)
4 Minn, Wily Illusionist Draws Extra Cards & Pumps All Illusions 4,591 Decks on EDHrec.com Blue decks nearly always find ways to cash in on extra card draw, and in Minn, Wily Illusionist's case, that payoff is making a board full of Illusion creature tokens