Mono Black Infect

this is meant to disrupt your opponent by discarding their hand and exiling key elements of their decks. you can win with out ever attacking, using caress of phyrexia and virulent wounds. geths verdict gets around indestructable and protection from black. you should know what is in your opponents hand at all times minus a card or 2, thus when you notice they are about to drop a gideon(because you didnt get rid of it) or something that may change the game you sac your whispering speecter and if you have more than 3 poison counters on the target then you should make them drop their entire hand(most of the time). lashwrithe and hex parasite are used to counter luminarch ascension any help would be much appreciated!