@chrissss: fish is something above my comprehension, I still dont get it, is slow for a beatdown deck, dont have many silver bullets nor much control, and the utility received from creatures is sub-par, but still is an impressive deck winning to many, where is the strenght of fish?
Fish is a kind of deck that capitalizes on the strengths of its opponents' decks.
It's mostly mana denial (Null Rod -> Mox; Strip/Waste -> Duals; Stifle -> Fetch lands) combined with efficient and irritating creatures (Meddling Mage, Ethersworn Canonist, Cursecatcher, etc), some countermagic and/or discard (FoW, Duress, Negate, Thoughtseize) and a decent punch (Jotun Grunt, Tarmogoyf, etc).
Since all contending Vintage decks nowadays have very focused strategies on winning the game, it would be easy (or relatively easy) for Fish to attack its main goal (i.e. cast a Tendrils for 20).
Now instead of Fish' opponent getting right on with its plan, it would have to deal with cards like say, Null Rod first.
All the while cards like FoW, Stifle, Negate, Thoughtseize, Cursecatcher and Aven Mindcensor are disrupting all efforts that the opponent are exerting to get rid of the "problem card" and/or get on with its main plan.
And while the opponent is trying desperately to get rid of the problem card, other potentially problematic cards are joining the fun, like say Meddling Mage, Ethersworn Canonist and Dark Confidant; and of course such cards swing for damage too.
The weakness of Fish lies in the fact that while some cards are brutal against a few decks, some would almost do nothing against the others.
It's also weak against decks that employ multiple strategies in winning the game.
So one should properly metagame before running Fish in a tournament.
And that's what Fish is mostly about: it's a metagame deck.
Some builds will work well in some matagames, other versions would run more smoothly on the others.
So if you want to run a "hate deck", Fish is probably a good choice for you.
But then again it really requires a lot of patience and experience, so you might want to get started on the department right away.
