Very good blackthrash yes....I love Tara myself, and Proscriptor is among my very favourite drummers stylistically. She Cries The Quiet Lake is my favourite song ever for the drum-track.
I just got Sun of Tiphareth this morning, haven't listened to it yet though....I expect it'll kick ass however.
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Proscriptor also plays for another blackthrash band called Melechesh for those who don't know yet. They are utterly awesome, very genuine-sounding mesopotamian melodies, and although Proscriptor doesn't tear it up like he does in Absu, he's still very creative with his rhythms and beats.