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: Luck Powers

Fighting crime, stopping disasters, and saving the Earth: it just takes a little luck. Okay, it takes a lot of luck. Fortunately (see what we did there?) Luck Powers gives you the tools to create characters with incredible good luck, who can also be a jinx on their foes. From Probability Control to Narrow Escapes and Lucky Shots, and more. So ask yourself ... are you feeling lucky? This product is for Mutants & Masterminds Third Edition.