All titans had the ability to shape themselves into different heights. It was common to have their bodies distorted depending on the abilities of their bloodline. Over the years most bloodlines have the ability to shed their skin and strengthen their muscles. In terms of defence, they have the capability of growing an exoskeleton of bones overtop of their own muscles. It is more common for the females to be able to form crystalized structures to cocoon themselves whereas the men will form stone. Although it is not unheard of a male forming a crystal and a female forming stone.
Different bloodlines hold onto different powers. They were families that were well recognized in the kingdom before the fall. Those with extraordinary gifts that outshone others and usually held onto a higher power within the monarchy.
The Nacht and the Sage bloodline were deemed knights of the royal family. The Nacht family had the ability of growing bone spikes from their body to use as a method of attack as well as defence. They were capable of removing the spikes from their body to strike an opponent or to throw.
A similar bloodline had the ability to harden their skin and turn it to stone. Therefore extracting the stone and using it as a weapon. Some say that this power was the original power, and the power of the Nacht family is a mutated version of it. However, due to higher versatility of the Nacht of the family, this bloodline was not well renowned.
The Sage bloodline has the ability to emit a poisonous gas from their mouths. The gas is deadly to anyone who inhales it. It was said that they could also combine it with the steam that they gave off. Not much else is known about the ability.
The Troph bloodline were well renowned for their extreme heights and strength. They were deemed as the tallest titans in all of Rhea. They often were the lords of the monarchy in charge of development of the kingdom. They had an innate ability to emit heat from their body at great lengths, burning the flesh of their enemies in defence.
The Gena bloodline were the guards of the kingdom. They had the abilities of stronger jaws and claws. They were in charge of protecting the kingdom from outsider threats. They, alongside those of the Shinto bloodlines, were tasked of protecting the Weismann line. Those from the Shinto bloodline were born with the ability to grow a second set of limbs and scaled skin.
Documented bloodlines showed that there were those who had higher endurance, those who were capable of being a titan for long periods of time, those who had heightened senses, and much more.
The Weismann bloodline was the more unique one. They were capable of communicating to each other telepathically, but only if they were of the same bloodline. To an extreme, there were select Weismann who were granted the ability of memory and mind manipulation. There were only a select few of them who were able to use this powers on those outside of the bloodline, whereas everyone else was confined to those within the family. There were those who were versatile with the power. However they never used it for personal gain, it was a family rule as to not fall victim to the curse placed upon them. When there were those who had the ability to control others outside of the family born, they were often eradicated for the safety of others. There was a general fear that the power was too strong. Those who survived and escaped the execution were capable of controlling many. However, like the others within the family, the excessive power takes a toll. Due to the extent and capabilities of someone with the ability to manipulate others outside of the bloodline, the body is strained. If it used too much, the user can die. It is rumoured that within this power lies premonition. Those who have a deeper connection have the ability to view what has yet to come.
On top of the mind manipulation, the Weismann line was also gifted a beast like form. They were the only bloodline to have two types of transformations. Each form was different for every member of the bloodline. Some had horns, others had tails. Some had long teeth and nails. Not matter the shape, their senses were heightened like an animal. The second form was skinless and often heightened their endurance and agility along with their strength.
They were deemed as monsters of the titans. Ones who were constantly close to falling to the curse but never succumbing to their powers. This made them the strongest and most threatening, giving them power to rule over all of the titans.
However, out of all of the bloodlines that existed, there were few that were resistant to that of the Weismann powers. It is unknown as to why they were unable to fall victim to the mind control, but it became more and more common. One of them being the Aberdeen line. Along with their resistance to the Weismann control, they had the adaptability of quick agile movements and zero falter at any size. They were also known for their incredible far sighted capabilities making them great scouts as well as their extreme accuracy when striking.