30 cards isnt that many, and a few cards from The Big Score are reprints, so that leaves room to highlight some cards from Thunder Junction Commander as well
While flicker decks have historically been better for adding blue, its now increasingly possible to get away without doing so
I actually think it was smart to broaden its appeal outside of Assassin typal decks, because otherwise these cards would not see much play at all
Commander Tazri, Beacon of Unity This spell costs less to cast for each creature in your party
It's also a great option in Spirit decks, copy decks, midrange brews with triggers to copy on both sides, and loads more
fatties like Avenger of Zendikar, Sun Titan, or Avacyn, Angel of Hope)