Nah ;)  Snapcaster is just there for a plan B so I can use Unburial Rites or Diabolic tutor to get cards where I want to be more reliably (assuming my first Ooze gets a creature removal spell at him or something).  The wincon is basically getting the Bloodline Keeper and Grimgrin in the graveyard and an ooze on the table.  Not sure how it'll pan out, I'll be dicked by Deathtouch etc (I sideboarded mask against nukes).  But could be fun to try out, and the cards I miss are pretty cheap.

Yup, Ooze gains activated abilities, inluding that of Grimgrin's ;)  So I tap ooze to create a bat, untap ooze to sacrifice the bat and get +1/+1.  Repeat until I get bored or until I'm at +1000/+1000.  :P

Hm I'm assuming you're misreading Necrotic Ooze. It gains activated abilities, in this decks case it's only Bloodline Keepers first ability that is an activated ability. And I would recommend at least 21 lands in total, get rid of the two Travelers Amulet and replace them with lands.