Decks Containing Mana-Cache

The main idea of the deck is to play the Final Fortune and Rebound it to target opponent, then they get two turns to live and unless they can kill me really fast, I win. The counters, wall, and direct damage are all for in case I don't pull a Final Fortune and Rebound so I can still try and kill them. Please comment.

Burnifact : aka Pyromaniac Possibly the fastest and harshest burn deck on the planet. Anyone who plays with metalworkers knows that they can generate a ton of mana. Storing mana on the ice cauldron and on mana cache is terrifying to an opponent, especially when you store 15+ mana (easily done with this deck) The phyrexian walkers and ornithopters are good ( free of cost ) blockers as well as mana sources for the metalworkers. Scorched ruins lands are potentially worth sac?ly worth sac?

Burnifact : aka Pyromaniac Possibly the fastest and harshest burn deck on the planet. Anyone who plays with metalworkers knows that they can generate a ton of mana. Storing mana on the ice cauldron and on mana cache is terrifying to an opponent, especially when you store 15+ mana (easily done with this deck) The phyrexian walkers and ornithopters are good ( free of cost ) blockers as well as mana sources for the metalworkers. Scorched ruins lands are potentially worth sac\'in the 2 lands for them but remember not to sac all mountains. (you need that red mana to cast a burn spell) Have fun torching your opponent. PS: Try expanding this deck, i tried using Urza\'s Lands for even more mana but it didn\'t seem to work as good as the original idea.

im not good with setting decks up. i need all the feedback i can get.