Hearthpwn

Can Bloodlust work on all totems to attack or only certain ones?

Bloodlust just increase attack of all friendly minions. All tokens on the field are minions. There is no Totem/structure or any other types of cards. 

I would like to know if when you have called out a totem and it is Stoneclaw, when you next hero power is there a chance to get Stoneclaw again (while you last one is still on the board) or can it not be called again till the last one dies?

If so what happens when you call out all 4 totems and use your hero power again?

Im pretty sure that your hero power can´t summon the same totem two times. And yes, bloodlust affect every minion (and totems are minions, so).

Yes, you can, nothing says that you could not do that move. Bloodlust, its simply +3 attack to your minions. if u use it two times, 6 attack.

It is very good with totems because often times your opponent will allow your hero power totems to stay up longer then they should, preferring to attack your harder hitting minions or your hero, leaving a free 6-12 damage with a bloodlust.

Bloodlust works on totems too, which makes it easy to fill the board as a shaman. Also the card that boosts their health is nice because it boosts the health of ALL totems in play.