You take 2. Phyrexian Processor, paying 4 life. Done.
Ransac: 9
Hand: 1
Library: 29
(T,T) Island x2
(T,T) Plains x2
(U) Sensei's Divining Top
(U) Phyrexian Processor (Paid 4 life)
(T) Devout Witness
Graveyard: Rebound, Timetwister, Counterspell, Force of Will, Plains, Maze of Ith, Force...