to get the most out of the drain package you should also be running 4
pious evangel, gaining life for creatures
entering and flipping him to create a 2/4 zulaport is awesome, have 8 drain effect creatures can be huge
idk about
unruly mob or
gavony unhallowed, i tried to run
rot shambler in my abzan aristocrats and it was good, but not an all star, can probably find other creatures with more value
i would also try and get rid of 1 ofs, i find it takes away from the consistency of the deck, planeswalkers you should run a minimum of 2 imo