Hello. Kind of exciting that I am posting a new thread this is a first, so excuse me any mistakes.
Flash had been getting a lot of attention lately; from the closed thread in the improvement forums to Menendian’s article on SCG, Flash is getting the active vintage and non-vintage’s players attention lately. And I would like to give it MORE attention by discussing about Flash’s sideboarding plans.
Please, lets not give Flash more attention regarding restrictions. No restriction, banning, and “I am right, you are wrong” kind of discuss. I am really excited about this and I hope you guys are too ^^
I can’t really draw a solid line on how to make the sideboarding plans distinct from each other so I am going to separate them in three types. One of them is the more general “15 different sideboard card plan” this is where we will discuss about the individual cards. The second one is the Oath transformational sideboard; this is distinct from previous plan because Oath sb often requires a huge amount of space (ie: 15 cards). The third is the Man-Plan where you board in Fish-like dorks to beat down.
These are some cards I would consider when I make Flash: (and these are my opinions and my experiences, lets discuss)
First: the “15”Leyline of the Void: This card is good against Ichorid and Flash. They can’t really win through it, both of those decks are really popular and they have to remove it before they combo off. These are my opinion, the best sideboard card against other Flash decks and Ichorid. 4 Leyline in the board is always a good start IMO.
Reverence Silence: It is FREE! It kills Leylines and it is FREE. Honestly, that is the only benefit that it has, which I don’t really like, I prefer chain of vapor more.
Chain of Vapor: I think CoV is a perfect card in the deck. It is versatile, it bounces crypts, leylines, and any other permanents. The real reason why I like it is because this card plays does it job in the role that Flash takes against other decks. Against decks that bring in Leyline and have counters, Flash are trying to win in a timely attack with more counters back up. This goes back to that Flash doesn’t have to go all-in all the time, with the Reveillark kill it is all about finding the right time. And CoV fits that role very well from my experiences with it.
Against decks that bring in Leyline and doesn’t have counters (Stax?) CoV serves as a cheap bounce. There are better options perhaps, but it isn’t too shabby. Some of those decks may not even be able to cast leyline, where you can pitch leylines to FoW and you have brainstorms.
Slivers (4 Poison Sliver and 1 Haste Sliver): The Reveillark kill takes 5 spot but gets owned by Extirpate. That card had ruined me a couple times and afterwards I am always thinking, why didn’t I have it? This of course, goes back to the previous time where I had it in my board. Basically the idea is that Sliver plan bypass the crypt, needle, and extirpate hate which people will “bring” in against you after seeing you have the “standard Reveillark” kill.
Rebuild/Hurkyl’s Recall: I had played with a number of these before when Future Sight was released. I think they are fine options against Stax dec. In NorCal where I play, there aren’t that much Stax deck running around, so a lot of times I don’t run it. Maybe it is good in other parts of the country.
Oxidize: Oxidize is efficient and cheap. It is my favorite way to go against spheres. It is kind of hard to build up a large manabase against Stax, so this is efficient at what it is doing.
Bosejiu: Of the time I seen it in action and played it, it done its job. But I think this is a bit too cute, which is not necessary wrong. It stops counters in its tracks, reminding me of TNN entwine GG. But my problem with it is that it stops counters, but doesn’t stop stuffs before and after. Meaning, it doesn’t stop Duress and Thoughtseize. And it doesn’t stop Extirpate, Leyline, and the alike. But vintage is about having fun (that is why Flash wasn’t played so much right right? ^^”) and this card is both fun and gets the job done.
Duress/Thoughtseize: This card is so good, I feel guilty putting it here. But sometime we don't have room in our main, or we want a full 4/4+ post board.
So, what is the right combination of 15 cards? That of course, depends on the players’ agenda and meta.
If it was me, I would probably run something like
4 Leyline
5 Slivers
3 Chain
13th, 14th, and 15th card depends. Duress/Thoughtseize if allows.
Sideboarding is pretty limited because there are only so many cards you can take out and to add in.
Menendian’s SB is as follows. (I will remove it if needed)
1 Heart Sliver
4 Virulent Sliver
4 Leyline Of The Void
1 Hurkyl's Recall
2 Rebuild
3 Reverent Silence
This also seems very legit.
Second: “The Oath” If we count: 5 kills, 4 Flash, 2 Green Pact, and 4 Hulk, we count 15 cards. These are the exact 15 that would be board out and we bring in 4x Oath, 4x Orchard, 2x Angel, the remanding Duress, and maybe whatever you feel is needed. I went: 4x Oath, 4x Orchard, 2x Angel, 4x Duress, and 1x Echoing Truth in my recent tourney, and most likely would switch up the number of duress MD/SB.
Oath transformational isn’t new, people mentioned it on other Flash threads, in MWS people used it, and can be found in Team ICBM’s website ICBM Open #2’s result. Despite it isn’t new, but I don’t think it had gotten a lot of attention.
Oath transformational’s Pro:1. Opposing Hate: Okay, mainly this avoids golden rule of “getting opponent’s leyline before winning.” With Oath, you invalidate opponent’s sideboarding strategy against Flash (may not be true in some cases). All of a sudden Extirpate, Leylines, Crypts, Needles, and etc become useless and dead if not semi-dead.
2. Mind games: You shuffle 15 in every game, thus you confused your opponents. Your opponent may make a mistake in sideboarding and it creates a mental advantage for you. I had a situation where my opponent didn’t board in Leylines because he didn’t know if I am boarding Oath or not.
3. Surprising Factor: Flash/Hulk is Oath/Orchard. Sometime just “Orchard” catches your opponents off. Again, they may had board others stuffs
4. Better against Stax/Creature.dec: Face it. Stax have trouble dealing with Oath. Resolved Oath is always good against Stax. And against creature decks Oathing out 2 Plat. Angel is hard for them to deal with, esp. when you have 8 counters + Duress effects.
With Oath sideboard you switch to an Oath deck with a lot of counter back ups and make your Blue Pact plain sexy.
Oath’s transformational’s Con:1. I think this reason is enough to invalidate Oath transformational SB. It is inefficient against Tyrant Oath, Flash, and Ichorid (unsure) Unfortunately; these are the big boys of Vintage. With the Oath SB I had above, I only add-in the Duress and left Oath out. With that said, it might be better to explore the “15 card” options that we have, such as Leyline of the Void.
a. It isn’t good against Tyrant Oath because they still combo off and owns you.
b. It isn’t good against Flash because of the very same reason why Flash is really good. Reveillark + Mogg Fanatic take care of the Plat. Angel.
c. Against Ichorid, you resolve Oath, and you have to wait for A TURN! Which you will probably not get because Ichorid will kill you by then.
2. Sometime you don’t draw the Oath: Well, that is the problem with Oath decks. If you don’t find them… you can’t really win :-/ And the deck isn’t Oath to start with, so it may be clucky at times trying to find Oath.
I think Menendian summed it up very well: You have to take the immunity to opponent’s sideboard vs. win over 4/5 turns into account.
Another thing that we have to consider is our main deck. For example, I don’t think Time Walk is needed if you are using Flash kill. But if you have Oath in the SB, Time Walk is a must. So the transformational plan may require some special tinkering.
Third: the “Man Plan”Trygon Predator, Dark Confidant, Tarmogoyf. I do not have any experience with it and it would be cool if someone wants to share some experiences. I personally think it sucks and that Oath plan is better than it.
Fourth: Robot Plan suggested from Aneursym and Becker
The link:
http://www.themanadrain.com/index.php?topic=35546.0 Short summary: Add in tinkers + robots while keeping the Flash combo. The tinker/robot plan bypass the hate that Flash faces. And if the opponent doesn't find hate against Flash or Flash got some godly draws, then combo out

This requires maybe 7 artifacts and more ponders as Aneursym suggested. Which again, depends on what is your main deck configuration.
Feel free to discuss about the cards (its functions, pros/con, etc), the plans (Oath, Man, generic sb)
Another thing I didn’t touch out is what to board out. I feel this is worthy a discussion as well.
Again, lets keep it civil~~~ There is a lot of stuffs that can be discussed IMO. These stuffs I wrote are purely for starting discussion and I am not an expert like many of you here; feel free to disagree and lets have a fun discussion. Thanks for reading this.
-Jeff Huang, aka: jeffthefob.
Edit: 3-31-08 7:52pm. Added in the robot plan.