I have not playtested this deck yet. however I figure there are two strategies with it.
the first is to all-out race your opponent's life down by throwing your face burns, and scrying (ideally for more burns) to pump up your flamespeaker, and swing for big money. occasionally you'll instead have to cast your burns on your opponent's creatures to smack your opponent in the face with the flamespeakers.
the second is the defensive strategy: get your flamespeaker on the board and don't attack with it. instead, burn face when your opponent attacks, and block using your flamespeaker's first strike (and spite of mogis) to keep the enemy field clear. this yields the possibility of using knowledge and power, as well as riddle of lightning.
as you can see, every card here either scries or yields benefits from scrying. I just made this deck and don't yet have a sideboard, any help is appreciated!