Unparalleled mobility and great ganking spells mean you will be zippin and zoppin all over the place getting kills. This guide utilizes bloodstone and orchid as your 2 big first pickups, depending on the team comps.
Keep in mind, Storm is squishy until he gets a few items, so don't go anywhere you might get stuck without mana in, as it is your new form of EHP due to ult.
MANTRA FOR STORM SPIRIT: USE 1/4 OF YOUR MANA TO ENTER FIGHT, USE 2/4 DURING FIGHT, AND 1/4 TO LEAVE THE FIGHT. Follow that and succeed.