If it is a permanent spell, it enters and will return to its owner's graveyard if it dies later
On top of that, attaching 2 Don to Monkey.D.Luffy, before he attacks, will activate his effect, halting opponents from activating their Blockers to shut down Luffys attack
In a way, you have a lot of cards that produce 1/1 Mercenary tokens, thus one could think that the theme is about going wide
In his yearly State of Design articles (which he has been publishing since 2005), he examines each set released the previous year and talks about the highlights and lessons of that set
No player may look at them.
The shuffle effect is minor and if that is all there was to this card, I'd say it's not worth running