I have a character i'd love to see grow, a Tiefling barbarian character made from pathfinder

Sinder's tale starts with his father 'deathless', a skald/bard known for surviving the worst life had thrown to him. His raiding party tried for a wizards tower, but all were slain and processed for reanimation as skeletal warriors. The necromancer fossilized all the fallen tieflings skeletons to make them stronger before bringing back to un-life except for the leader whose bones he bound to steel instead. When the necromancer began to animate the dead, deathless' fiendish heritage came to pass and brought him back to life as per the raise dead instead with the steel still bound to his body in permanent living agony. He killed the necromancer with a backstab and returned victorious with a wizards tower for the clan to use as a home base. 

Sinder [url=http://www.goblinscomic.org/08172006/]Tarrock[/url] Is from a barbarian clan of [url=http://www.d20pfsrd.com/classes/core-classes/barbarian/archetypes/paizo---barbarian-archetypes/titan-mauler]'giant hunter'[/url] tielflings, his mother was the successful capture of a raid on a gnomish village and the personal 'pet' of the clans Skald. When she died giving birth to a child, he possessed the same metallic sheen on his skin as his father did on his horns so there was no mistaking his heritage. This small creature was malformed with oversized forearms with hands like mittens and a flesh of grey. His father took every pleasure in starving and kicking the child about, trying to kill him off in every way but murder. For over a decade the child's skin grew thick in body and mind as he molded a burning hate for his father until finally he could take no more and challenged his father to a duel at the top of the wizards tower for all to see. 

The cocky bard agreed for the chance to finally be rid of the stain to his bloodline and even laughed as the boy had to snap an iron tipped spear in half just to wield it properly. Under the rolling storm of their skygod, both climbed the outside of the tower from opposing sides and faced off on the sloped tile roof. like an ape, the boy threw himself at his father in a barbaric rage to begin climbing up the man to plant the jagged wood into the collarbone like a flag of first blood, then the lightning struck. The tallest point for miles, with a skeleton of steel and an iron tipped pole sticking out. The gods judged the man and found him weak while the son climbed back down with his fathers body to begin the funeral pyer. But he wasn't done yet.

Since the founding of the tower, the Tarrock clan has started forging their own items mostly by casting stolen molten metals into molds, Sinder took one such mold and set it under the pyre with some guiding troughs so that as his fathers bones melted they would fill the mold and shape them into a weapon that would be far too large for him to use, if not for his over-sized arms. He took his father as a weapon and seeks to earn his father's pride by dragging him from fight to fight to show him just how strong his son truly is.

His first destination as an adventurer was to the gnomish settlement of his mother, While not immediately welcome, he explained his heritage and plight. The elders agreed to convene a suitable challenge and reward in the way of tending to a pack of gnolls hounding the township. He took one guide with him to get him to the pack settlement without needless incidents that would exhaust him before when he was needed. The settlement was a hollow, not even a cave just a windblock of carved earth the previous tenant of a dire bear called home.... That gave him a plan. 

He went to the village to acquire three odd tools, a pick, a yoke and ten buckets. He got the buckets filled with water by the river where he slathered him from horn to heel in mud and carried them by yoke to the top of the settlement. At the top of the cavern was a single tree, its roots running deep and forming the frame of the windblock. He worked the pick to loosen the earth between the roots then put a bucket of water to the churned dirt. The weight of the tree and the muddy land were enough that all it took was a few mighty blows to bring earth and wood down in a great crash, felling half the pack at once with him to deal with the rest in melee. It was not an easy fight and it was hard won but it was won.

He returned to the village and was granted his gnomish status by the Elders and they took his morbid weapon to their craftsmen who reforged it into a masterwork weapon with a minor enchantment to bathe it in a heatless flame, just to look cool and free his hands from the need of a torch. Now he travels to seek out mighty deeds to do and show his father what sort of hero he can be.

His weapon has been various kinds, greatsword, large warhammer, Haliberd, scythe, falchion, re-flavored to different campaigns but always of the oversized quality for the 3 foot tiefling with monkeygrip and as many feats/traits/enchantments to use ever bigger weapons.