Phoenix

Tips

 * Since most of Phoenix's abilities cost health to activate, health regeneration and strength boosting items should be a top priority on phoenix. Mekansm, Pipe of Insight, and Heart of Tarrasque are good examples of such items.
 * Since the only thing that can kill the Supernova are auto-attacks from Heroes, it's best to prioritize a Shiva's guard as your first or second major purchase, as its passive attack slow works during your ultimate.