Originally Posted by
Ozymandias
You guys are too concerned about discard, as opposed to Forces. To elucidate, I have prepared the following back-of-the-envelope calculation:
What are the odds that Thoughtseize will wreck your shit?
First, you need to lose the die roll: 50%
Then, your opponent needs to draw a thoughtseize: 40%
Then, you need to have a hand with exactly one win condition out of eleven in the deck: 40%
Then, you need to fail to draw a win condition when you draw for turn: 81%
.5*.4*.4*.8=.065-> A 6.5% chance of thoughtseize wrecking you.
Now, this is a simplified assessment. Your opponent could plausibly take a mana source, but that seems highly unlikely given the composition of belcher. Compensating for that are
a) The assumption that failing to topdeck a win condition on t1 is GG
b) The assumption that your opponent is going to actually lead with Thoughtseize, instead of Deathrite or whatever--totally dependant on your opponent's awareness of what you're playing.
By contrast, what are the odds of FOW wrecking your shit?
First, your opponent needs to draw a Force: 40%
Then, you need to have a win condition that's not ETW: 73%
.40*.73= a 29% chance
So you are far better off boarding against Force than you are against discard--especially when a timely force will cost you far moer resources than a Thoughtseize.