Rather than 1/9 packs having two mythics, 4/9 having rare/mythic and 4/9 having rare/rare, we now know that the actual distribution is that 6/9 packs will be mythic/rare and 3/9 will be rare/rare
Find what ever you need with Demonic Tutor and Liliana Vess
Mikey & Don's second ability lets you look at the top card of your library whenever you want (with one restrictionsee below), even if you don't have priority
If you dont have another two drop, get the Rootweaver or the Phyrexian Missionary down there rather than waiting to play it for value
Lonely Sandbar Taps for a black, cycles for 2 colorless
Though there are a lot of creatures who can do this, like Fleshbag Marauder and Butcher of Malakir, Plaguecrafter has the added bonus of forcing those who have no creatures to sacrifice into discarding a card