From Green Ronin’s webstore:

Each Power Profile takes a look at a particular type of super-power in Mutants & Masterminds game terms, putting together the effects and modifiers from the Hero's Handbook to present different abilities associated with that power, from offensive and defensive to movement and utility. It also discusses different power descriptors and how they affect game play, as well as features and complications associated with the power. It's a ready-made guide to creating new heroes and villains for your M&M game!

Power Profile: Fire Powers

FIRE! Maybe not something to shout in a crowded theater, but a major source of super-powers. In the inaugural entry in our new Power Profiles series, we spark things off with a look at real "Fire Power," from hurling blasts of flame to fiery auras, rocket-powered flight, transforming into a being of fire or summoning them to do your bidding.