From publisher blurb: Keep it Simple: Size-Changer Simple classes are trimmed-down, streamlined classes designed to be easy to pick up and play for both new players and system veterans! Each has a sleek core set of abilities that isn’t bogged down with options backed up with a strong but balanced chassis (HD, saves, BAB, etc). Size-Changer (Pathfinder 1st Editon) Size-changers have supernatural control over their size and density; this allows them to both shrink and grow at their whims. Grow to the size of a cottage or shrink to the size of a pixie; the power is yours!