Uh, I think traditional speed poison is faster than this, but if you want to keep this, then...
for sure:
-4 Empathic Bond
mark of
/
probably:
remove all bone pillars and change aether pillars for pendulums
This is theoretical so far, but I might test it out a bit.
EDIT: With the changes I made, I could consistently beat AI3 within 15 turns, which is still a good 4 turns away from traditional speed poison. However, it does stack up poison like crazy:
(
http://imageplay.net/view/m7Gbd96460/Untitled)