A blue example of this is Gitaxian Probe, which can even be cast without using up your mana by paying life
By holding the card whilst examining it, an animation of the illustration will play out, the camera zooming through each layer of the work to show other Pokemon in the background living in their natural surroundings, unique interactions between different species, and stories of the Pokemon world
If you haven't actually drawn any cards that turn, the rest of the ability has no effect
Vegetables are the mana sources of a deck
The other potential Grixis commander for the deck is Saruman, the White Hand, who is clearly focused on amassing Orc armies to justify the undying industrial fires of Orthanc and feed the military might of his master, Sauron, in Mordor