1.Vigilant Pistoliers
"Warrior. If this unit is destroyed while in your battlefield, put it into play in your kingdom instead of into your discard pile."

Bloodsworn
Forced: When an opponent's unit enters a discard pile from play, heal all damage on Bloodsworn.

When Vigilant Pistoliers's ability triggered,what happened to the attachment on this unit?does it go to the discard-pile?

and does opponent's Bloodsworn's ability triggered? does Vigilant Pistoliers's ability count as it enter the discard-pile?

2.Slaanesh's Domination
Action: Reveal up to three cards at random from one target opponent's hand. You may play any tactics thus revealed as though they were in your hand for no cost.

The tactic card i played from my opponent's hand,will it back to my opponent's hand? or go to his/her discard-pile?

The three tactics that you play are treated as if they were played (so, discard being the usual effect after playing a tactic) would occur. The question on the pistoliers, I would also like to know the answer. If they don't officially enter my discard pile, do they keep any attachments they were carrying as well?

Pistoliers are still considered destroyed, so they lose their attachments.

www.fantasyflightgames.com/edge_news.asp

Dam said:

thanks

does it trigger Bloodsworn's ability?

VP: "If this unit is destroyed while in your battlefield, put it into play in your kingdom instead of into your discard pile."

If you use them, they never go to your discard pile, so Bloodsworn wouldn't kick in. But since they are still destroyed, I'd say you can combo them with Garder of Morr:

deckbox.org/whi/Garden%20of%20Morr

No as they do not enter the discard pile.

Edit : sorry for cross posting with dam.

destoryed but not go to the discard-pile

thanks