First of, congrats on a great finish!

Your list looks solid, but I still find it light on the mana. I know you run 3 more cantrips, but playing 17 land scares the shit out of me, and sacrificing a Wasteland, even just 1, seems like a very poor choice IMO. I don't play vintage all that much, but when I did, I always found Wasteland too be ridiculously annoying. Would adding some more land hurt the disruptive nature of the deck? More land would go at the cost of less disruption, but with a more stable mana base, you will at least be sure you can actually cast your disruption.
Quote from skumle humle:
Personally i wouldn't go anywere near using the ninja in a deck as tempo oriented as birdshit. usually i wouldn't drop a critter within the first three turns setting up my lock(null rod) and denial plan( stifle and wastes).
I agree with you on the first part, you definitely want to spent your first few turns on creating a lock or denying your opponent of mana. However, didn't it bother you that you where limited in only 1 card per turn? Serum Visions may get you a card you need, and I surely think it's a good card for this deck, but it does not let you draw into multiple disruption cards or threats. If the card you get with a Visions gets countered, you're left with the topdeck, while a ninja will allow you to draw into counters to protect your disruption/threats or let you draw into new ones. I agree tho, that he is painfully slow, so may be a lesser number (2 I think) is enough?
As for the sideboard, I want to have something against Oath, CS, SSB, combo and something to replace Null Rod with against decks like Fish. For example:
- 3 Ground Seal: mainly against CS, but also usefull against Salvagers, Dragon and perhaps SSB?
- 3 Ray of Revelation: against Oath of course. It could be used against Dragon, but I already have Ground Seal (which is a diffrent kind of thread then StP and Stifle), Stp and Stifle against them which I think are more usefull.
- 3 Energy Flux/ Serenity /Oxidize: the Flux is the strongest, but slow, and might be a little too hard to cast in this deck. Serenity is also really strong, quicker too cast, but I don't know if I can get any in time. Oxidize is the weakest against Workshop decks, but is really cheap and usefull against a more variety of decks.
- 1 Swords to Plowshares: against Welder decks, aggro and Dragon.
- 2 Umezawa's Jitte: this a bit of gamble, since I don't know if it will work, but if it gets active it will wreck Fish/aggro like not other. The risk comes in the mana cost (you ideally want to cast ánd equip it at the same time), and that 4 of my creatures cant use the equipment. Still, I need something against Fish to replace Null Rod, and the Jitte seems like a good choice.
- 3 Orim's Chant: obviously this comes in against storm combo, I just don;t know if it will be good enough. It does mess up with there combo, and can give you time enough to drop a Mage or a Null Rod. I don't run Arcane Laboratory, so maybe I can't take full advantage of a Chant, but if vintage is really as fast as I think it is, a turn might be all I need.
Is that sideboard any good, or am I missing something that should be in there?