It's a good idea, but I've got a 1 win for each 3 games with this deck on xmage the way it is. Maybe because it's an unnespected fun deck.
When some of the draw combos engage with Chasm on the field I can hit for a bunch of damage. Most of the time flying 6/6 and above.
Burn decks usually can't be beated, but if I can get a chance to get Chasm on the field for 1 turn I can get it far from the Lithining Strike reach.