Foresight
{1}{U}
Sorcery
Search your library for three cards, exile them, then shuffle.
Draw a card at the beginning of the next turn's upkeep.
Graf Rats
{1}{B}
Creature -- Rat
2/1
At the beginning of combat on your turn, if you both own and control ~this~ and a creature named Midnight Scavengers, exile them, then meld them into Chittering Host.