event card ward and griff

Is ward consider a targ attachment in play? and it can be returned to hand by griff?

I dont think it is considered a targ or stark attachment; I believe event cards with house x only is a deck building limit, not an actual house affiliation so griff couldnt respond to it. Also im a little fuzzy on the timings but it may lose its attachment definition when it becomes moribund or loses the condition that makes it an attachment, but thats just a gut feeling.

Events have indeed no affiliation (so they are neutral), even the ones that are House X only or the ones that interact only with specific houses (though many search engines work the opposite way to ease searches). When a card changes from one type to another, all of its stats for its new type are defined in the effect that changes them and anything not mentioned is simply whatever it was before (including a stat being absent, like cost).