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The following are a few of the most evil among the known species of giant.
All giants have the following special abilities:
Rock Throwing (Ex): Adult giants receive a +1 racial bonus on attack rolls when throwing rocks. A giant of at least Large size can hurl rocks weighing 40 to 50 pounds each (Small objects) and a Huge or larger giant can hurl rocks of 60 to 80 pounds (Medium objects). Thrown rocks allow for five range increments; the exact amount of range increment (in feet) depends on the specific giant’s size and subspecies.
Rock Catching (Ex): Once per round, a giant that would normally be hit by a Large, Medium or Small rock (or similar projectile) can make a Reflex save to catch it as a free action. The DC is 15 for a Small rock, 20 for a Medium one, and 25 for a Large one (if the projectile provides a magical bonus on attack rolls, the DC increases by that amount). The giant must be ready for and aware of the attack in order to make a rock catching attempt.
Titanic giants are abominations of the giant creature type, given godlike powers by higher divine forces. A titanic giant usually has a power that allows it to ‘break the rules’ of combat somehow, forcing heroes to come up with ingenious tactics if they hope to win.