Hey Guys quick question. With Bloodthrone Vampire can I only sacrifice 1 creature to her ability?
Also If you could sacrifice as amny as you can will she get +2+2 for every sacrificed creature making her fairly large?
Bloodthrone Vampire's ability is an activated ability; you can activate it as often as you can pay its cost, which in this case is "Sacrifice a creature" (C.R. 602.1, 118.3). (In this sense, the ability is similar to Nantuko Husk's and Ashnod's Altar's [C.R. 108.1].) And each time that ability resolves, Bloodthrone Vampire will get +2/+2 until end of turn. Thus, for example, you can activate Bloodthrone Vampire's ability five times in a turn by sacrificing that many creatures to pay the cost, so that Bloodthrone Vampire will get +10/+10 until end of turn if all those abilities resolve. See also this thread.
As Peteroupc said, Vampire's is an ACTIVATED ability, which means you may use it as often as you can pay the price, and all +2/+2 gained are cumulative. Brawl-Bash Ogre's ablity, on the other hand, is a TRIGGERED ability: you may only do as much as you're told (that is, sacrifice ONE creature) and get +2/+2 only once.
Also If you could sacrifice as amny as you can will she get +2+2 for every sacrificed creature making her fairly large?
Kind regards
EDIT (Feb. 18): Clarification.
As Peteroupc said, Vampire's is an ACTIVATED ability, which means you may use it as often as you can pay the price, and all +2/+2 gained are cumulative.
Brawl-Bash Ogre's ablity, on the other hand, is a TRIGGERED ability: you may only do as much as you're told (that is, sacrifice ONE creature) and get +2/+2 only once.
See rules 602 & 603 for more details.
RULES OF MAGIC :
http://magic.wizards.com/en/game-info/gameplay/rules-and-formats/rules