Thousand-Year Storm
is your main win con in this deck. Simply by multiplying spells, you burn enemy's face.
Opt
good draw option, plus it will help you to gain additional storm counters for low price.
Anticipate
. As long as u will need particular cards for particular situations, I think this card makes the best job at finding cards you need.
Electrodominance
fits good to place your Storm, Ral or Niv-Mizzet at the opponent's end turn, otherwise it's a good burn spell which will also allow you to kick it ability spell with additional storm counter. Plus it will allow you to play mass removal in opponent's turn, which will can be found helpfull in particular match-ups (Selesnya tokens for example).
Absorb
good counter which also allows you to live a bit longer
Pirate's Pillage
for draw and mana in the form of treasures.
Cleansing Nova
and
Deafening Clarion
mass-removal to help you deal with creatures.
Ral, Izzet Viceroy
is your alternative win-con.
Mission Briefing
is very good in your deck, as reanimation for your spell it also gets additional counter on your storm.
Brass's Bounty
should give you lots of mana if you play it with storm counter more than 1.
Treasure Map
will sift you topdeck and also will boost you up with mana after it flips
Lightning Strike
removal for weak creatures and the main way of how you gonna kill your opponent.
In sideboard there are:
Banefire
in control match-ups it is a good spell to finish the game or kill threat.
Negate
to help you to deal with counter magic and agro's burn
Revitalize
for agro match-ups.
Niv-Mizzet, Parun
is good in control match-ups
More
Deafening Clarion
for agro and tokens match-ups.
Clear the Mind
for long-lasting match-ups against control
Settle the Wreckage
in Phoenixes/Drakes match-ups, or against Adanto's Vanguard.