Ostensibly, white is the worst color at drawing cards, but then Wizards goes ahead and gives it this miniature Rhystic Study, which will ensure you stay ahead on card draw or keep your opponents behind the curve
Other Builds If you wanted to build this deck in a way thats able to trigger Saruman even more often, you may want to lean towards a cantrip-heavy build
If the creature copied by the token had any "when [this permanent] enters" abilities, the token also has those abilities, and they'll trigger when it's created
I jam games of Commander at least once a week at my LGS, and when I can (and we can get people together) we also have a great cube community
(Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws.) Whenever you commit a crime, create a 1/1 red Mercenary creature token with ": Target creature you control gets +1/+0 until end of turn
That's a total of 540 cards