Your enormous ancestors have graced you with a powerful form that can only be matched by your heart of ice.
Bonus Feats: Endurance, Great Fortitude, Greater Bull Rush, Improved Bull Rush, Iron Will, Power Attack, Toughness.
Bonus Spells: enlarge person (7th), bull’s strength (10th), elemental aura (13th), ice storm (16th).
Bloodline Powers: Strong, unwavering, and with all the power of a raging blizzard, you cannot be stopped.
Oversized Combat (Ex): At 1st level, your giant blood heritage allows you to function in many ways as if you were one size category larger. You can use melee weapons designed for a creature one size larger without penalty. However, your space and reach remain those of a creature of your actual size. The benefits of this ability stack with the effects of powers, abilities, and spells that change your size category.
Frostbitten Hide (Su): At 4th level, you gain cold resistance 5 and a +1 natural armor bonus to AC. These improve to cold resistance 10 and a +2 natural armor bonus to AC at 8th level, and cold resistance 15 and a +3 natural armor bonus to AC at 16th level.
Enormous Presence (Ex): At 8th level, whenever you are subject to a size modifier or special size modifier for a Combat Maneuver Bonus or Combat Maneuver Defense (such as during grapple checks, bull rush attempts, and trip attempts), you are treated as one size larger if doing so is advantageous to you. You are also considered to be one size larger when determining whether a creature's special attacks based on size (such as grab or swallow whole) can affect you. At 20th level, you are treated as two size categories larger for the purpose of this ability.
Mammoth Endurance (Su): At 12th level, when you use bloodrage, the morale bonus to your Constitution increases by +2. At 16th level, this bonus increases by +4.
Critical Mass (Ex): At 16th level, whenever you confirm a critical hit with a melee attack, you can make a bull rush combat maneuver against the target as if you had the Improved Bull Rush feat as an immediate action. You can move your target up to 10 feet before you are required to move yourself.
Giant of the Tundra (Su): At 20th level, your giant heritage becomes manifest. You increase one size category (Small to Medium, Medium to Large, and so on) permanently. You gain +2 Strength, +2 Constitution, and a +4 natural armor bonusto AC permanently. You also gain immunity to cold and the rock catching special ability.