alrightie-then.

1)  My bad for not reading the card.  Leyline clearly won't hurt my YWill.  That's what I get for not reading the new cards (it's new to me ...).
2)  So then it seems that the Leyline/Helm combo is like Plan B - if you see an out, then go for it?  In my absence, was there already a slew of decks that attempted to abuse the crap out of the Leyline/Helm combo, but failed?  Is it because Helm is too obvious to fight, via counterspells and targeted removal?  Is it because we don't like running 4 serum powders?
3)  Back to this deck - how do you deal with Jace - assuming that the tricky blue mage managed to get him out through your Duresses and Thoughtseizes.  Pithing needle is good and all, but they soon fall victim to Trygon Predators.  Of course, maybe you don't have these problems because you're using your Duresses and Thoughtseizes effectively, and I'm not. 
4)  Separately, if you could Thoughtseize an early Dark Confidant vs. a Trygon, which do you choose?  On one hand, Dark Confidant might help them squirm out from underneath your disruption (or tutor/topdeck something nasty), but a Trygon will similarly wreak havoc if you were relying on that Null Rod.  Perhaps just pray for an Edict? 

Sorry for the newbie questions ... I apparently have a lot of playtesting ahead of me.

So, it's been a LONG time since I've played Magic.  Years.  2005.  I'm planning a gradual return to Vintage and I'm actually intrigued by this deck moreso than others out there - which is weird because I used to play 4CC, Gifts, and Control-Oath.  I like the aggressive nature of this deck, but because I'm still kind of new - could you explain to me the utility in the Leylines you use?  While I see that it's a safeguard against decks that heavily manipulate their graveyard, I guess I would be extraodinarily annoyed in game 1 if I'm not playing such a deck and can't Will anything good.  And on top of that, getting stung by my own Dark Confidant.  What do you say?  Or is it in there because you feel that game 1 would be an auto-lose against those decks, otherwise?  If so, then do you always play the opening Leyline if you have it in your hand if you don't know what your opponent is playing?  Maybe I'm missing something incredibly basic, in which case I apologize if I am.  Thank you!