Seeing his brother in his current state, Thrain knew he had to work on himself and become stronger than his brother to make sure this never happens again.
First thing I should probably test is how many times I can use my max strength and how long it takes to recover.
Heading outside Thrain held his sword in front of himself and muster out all of his strength and slashed, then again. Repeating this another two times Thrain figured out he could use his max strength at least four times, having a little bit left over to still do some things. Now he waited, tending to Thorin and trying not to use to much strength.
An hour had passed so Thrain went outside to try again. He could slash another four times, meaning he recovers four strength an hour. I've got to test this a couple more times though because what if there's a drop off for the recover and it gets worse over time? So he tested again and again finding out that he could recover four strength every hour for four hours but on the fifth hour he could only recover half of his strength in the hour.
Ok, so I can attack with all my strength four times. Not nearly enough to be of any real use. Time to train. I think I'm going to try to double my current strength. Thinking to him self he headed back out side, dropping to the ground and imminently doing push ups while using his full strength. After about 400 push ups in a row he passed out.
Waking up again he repeated throwing in some slashes and a variety of other exercises.
Minutes turned into hours, hours into days and finally one month had passed.
Thrain headed out like usual to train going to do push ups but this time instead of four hundred push ups he manged to do sixteen hundred. Quadrupling his first attempts. Thrain had realised that while doing push ups, if he controlled his strength he could push out exactly half his strength which would make him last even longer during battle giving him more options such as switching between half and full strength attacks.
It took much longer than I would have liked but I can now managed eight full strength attacks and sixteen half strength attacks but I don't know - Thrain's eyes wondering over to Thorin's body that is now fully healed however he is still unconscious - I don't think it will be enough with just my strength alone I'm going to need to improve my technique - looking out of the cave and into the field he sees a nature deer running around In a playful manner. Upon closer inspection though Thrain noticed that instead of running at consistent speeds they are actually using little bursts of speed. I wonder?
Sneaking up and getting closer, Thrain observed the deer. When threatened the deer would use bursts of strength to accelerate quickly catching there predators off guard. Looking closer at their legs he could see as the strength they use pulsed its way down their leg, starting from the base of the leg moving to the thigh, the calve, finally going to the foot giving the foot explosive strength when they kicked off the ground.
Thrain tried to replicate the deer's precise control of their strength, gathering all of his strength in the base of one of his legs but as the strength started to move down to the thigh. A tear could be heard, Thrain looking down at his leg where blood's now coming out of different areas. Nothing worse than Thorin's. So he tried again in his other leg.
This time more carefully, He could feel where he went wrong and reigned in his strength pushing it all from the base of his leg down the thigh feeling some more resistance he held it for a second moulding it within his body. Then proceeding to push again now into the calf, followed by his foot.
Strength filling his foot, he pushed down on the ground. Boom. The ground cracked as Thrain used 1 of his eight strength which sent him flying forward, unable to land properly Thrain just rolled on the ground. Dusting him self off he rose again and tried this time with half of his strength instead. With less strength the ground didn't crack nearly as much but he was still sent pretty far and really quickly, landing this time.
A day later Thrain leg was healed and he tested consistently moving with his new technique first he ran to the lake which previously took around 30 minutes or so. Now took him less than 5 minutes to get to. Afterwards he tested the combo potential. He held his sword while he used short burst to move around a small area and slash as he lands.
This gave Thrain a new way to evade attacks as well as close distance. Realizing the potential for learning through animals movement he embarked to look for some more new as well as some older animals.
Exploring a bit he came across a couple of animals but the one that caught his eye the most was a horned rabbit which was up against a nature deer. The deer tried to stop down on the rabbit in response the rabbit dodged to the right and immediately stabbed its horn into its leg. This repeat for a while the rabbit dodging and stabbing, eventually the rabbit gathered its strength and put it into a single point. It released the single point of strength, thrusting and piercing the deer's eye going straight through its skull.
Thrain continued to watch the rabbit for a few days, testing the stab whenever he could but he couldn't get it just right. Frustrated, he headed back to the cave to take a rest. Reaching the cave Thrain could feel something wasn't right. Looking back out towards the plains Thrain could see an eye piercing behind the tree they once stayed at.
It was the same eye as the previous owner of the cave.