GK/BA Competitive Attempt

It's been a long time since I've thought about competitive play outside of our group. This is my first attempt to bring the cheese outside of my normal comfort zone and will have to face things like other bike armies or Knights. So here's the list. Eat it alive please.

Blood Angels CAD
175 Mephiston (Sanguinary)

55 5x Scouts (Bolters)
125 5x Tac (Combi-Melta, Melta, DP)

35 Drop Pod
35 Drop Pod

70 ADL (Comms)

-495

Nemesis Strike Force
140 Librarian (ML3, DH)

207 5x Terminator (DH, 3x Falchion, Psycannon)

304 10x Purifier (2x DH, 6x Falchion, 2x Incinerator)
304 10x Purifier (2x DH, 6x Falchion, 2x Incinerator)

200 Dreadknight (Teleporter, DH, Psycannon)
200 Dreadknight (Teleporter, DH, Psycannon)

-1355

=1850

Of course I'm going with that super cheesy purifiers in drop pods that DO benefit from Rites and combat squad them giving me D6 + 17 psychic dice. I'm a little worried about the lack of flyer defense aside from Cleansing Flame, which isn't a great flyer defense, but it's better than nothing I guess. I'm also a little torn about which discipline to take on my GK Libbie. Any help is appreciated. And I always enjoy constructive criticisms.