Does this proc it

[Puir]

Does  {Bloodlord of Vaasgoth} Last ability proc if  {Cairn Wanderer} Enter giving it 3 counters?

[Kaylesh]

{cairn wanderer} is every creature type at ANY time, so this is also a vampire spell as you cast it. It will gain bloodthirst 3.

EDIT: ruling

702.72a: Changeling is a characteristic-defining ability. "Changeling" means "This object is every creature type." This ability works everywhere, even outside the game. See rule 604.3.