A five-mana artifact that taps to draw a card isn't amazing, but it's OK and the synergy is cute enough to be worth considering for a lower-powered Omo list
Authentic AU The Authentic designation is used for autographs that are authentic but not numerically graded
If a card is holographic, its worth even more
Further Upgrades The first cards I'd pick up to further juice up the deck would be untapped mana-fixing lands: Watery Grave, Shipwreck Marsh, Underground River, Morphic Pool, Darkslick Shores, Polluted Delta, Sunken Ruins, Undercity Sewers, Urborg, Tomb of Yawgmoth and then maybe a couple more Island / Swamp fetches
If the point of Malik, Grim Manipulator is to strike fear the moment you see it in the command zone, I think that goals been achieved
In the other side, select the cards that you want to receive (I highly recommend searching for the cards you want in the top left box instead of searching through your full collection)