Pretty much everything you wrote in defense of T.Wrath has already been debunked.
The math looks horrible on paper.
You say the
only time it's bad is in the opener? How many cards do you see that
aren't in the opener? We can even assume that you're on the play so you never draw a card without a land in play. You'll need to draw or Scry eleven cards off the deck before the average T.Wrath you see does more damage than a bolt. If Burn ever sees seven+ draw steps, it more than likely already lost. In what world does this math look good on paper?
"Sure, I'll simply mull when I see a T.Wrath." Nope, doesn't help. You go from 6 "live" cards in hand to 6 "live" cards minus however many Wraths you draw in the new hand. If the hand is playable besides T.Wrath, you just have to play it with the dead card in hand, reminding you that the bad math on paper translates to bad in-game performance.
"Sure, I'll simply run fewer in the deck." Nope, doesn't help. The link above shows why. You see fewer in your opener, but you also see fewer in your draw step. If you see one in roughly 21% of your first seven cards, you'll see one in roughly 21% of your next seven cards as well. And at that break even point, the average T.Wrath seen will have done (0+5)/2 or 2.5 damage,
still less than the allegedly unusable Lava Spike.
Original quantitative analysis:
http://forums.mtgsalvation.com/showt...53#post8218753