Sinister Savant's Cursethreads

2 pieces: (2) Set: Vile Taint cooldown reduced by 5 sec and Phantom Singularity cooldown reduced by 12 sec. Vile Taint and Phantom Singularity damage increased by 60%.

4 pieces: (4) Set: Enemies damaged by Phantom Singularity gain Infirmity for its duration and enemies damaged by Vile Taint gain Infirmity for 10 sec, increasing damage taken by 10%.