After taking all of these aspects into consideration, there were almost nothing beside this two A-Rank skills that I found useful.
Rapid Recovery: Increases the possessor's recovery rate for stamina, mana, healing, etc. The recovery rate is increase by a factor of one hundred. The recovery rate can further be increase with training.
Most people when looking at this skill will say it is a useless skill unless you are some kind of training junkie. But my opinion on this is those who can run the farthest and fastest than their enemies will have a higher rate of survival in a battle. With mana able to recover at a fast pace, I can use magic again faster than others, which is kind of like reloading a gun. If a normal person can shoot magic with the pace of a musket, while you shoot magic like a semi-automatic rifle, you are undoubtedly win in a gun fight. Furthermore, I can use it to recover from any injury or illness faster, which is important wherever I go.
I'd also will able to work on less sleep and my stamina recovery rate will help me train for longer times. After thinking, I choose this skill as my first A-Rank skill. The next skill I chose was also overpowered.
Limit Breaker: Allow the possessor of this skill to break the natural limit of their species. Strength, stamina, mana and et cetera will able to grow without limit as long as one trains their body to further length.
Most person who read about this skill description will likely abandon it. Although a person can grow past their limit, but just think it logically, just how much time and energy does a person need to contribute to become stronger than their own species. Most people would not have the time to limit break since the natural limit quite high and it will also take almost a lifetime just to break it.
However with the natural limit of my body gone, I'm sure that I can strengthen my overall strength with training and since I have Rapid Recovery, I will able to grow my strength faster than others and train much longer than the average person would. I might even surpass the Fallen God's Champion with only the first hundreds of years of training. This will undoubtedly will become an important factor for me to take in when I will be fighting him since I am need surpass him as many aspect as possible.
Just with these two skills Rapid Recovery and Limit Breaker, it can be already considered that I am a monster under a human skin. Which is a good thing for me in order to win against the Fallen God's Champion.
For my B-Rank skills, I prioritize versatility and chose Martial Arts Mastery and Weapon Mastery.
Martial Art Mastery: Allows the possessor of this skill to learn and use any type of martial arts with ease. It will also enhances the combat capability and heighten reflexes of possessor during close quarter combat.
This skills allows me to learn and use martial arts more efficiently which is important if I was disarmed during combat or attacked in a surprise.
Weapon Mastery: Allows the possessor of this skill to learn and use any types of weapons with ease. It will enhances the combat capability and heighten reflexes of possessor during combat when wielding a weapon.
After I did some debating on whether to choose a 'Jack-of-Trades' type of battle Skill and a 'Specialize' type of battle Skill, I concluded that being able to use any type of weapons is better if was in a situation where I am unable to use my main weapon. As this skills allows me to learn and use any type of weapon more efficiently. However, I will still be in a disadvantage if I am faced against a Champion that possessed a 'Specialize' type of battle Skill. But I might able to cover it by using other weapons to counterattack them. For instances, if I am faced against a sword user, I just need to take my gun out and start blasting them. Though, I still need to be cautious when facing them.
For my C-Rank, I chose a flexible skill and a skill which is quite weird to be categorized as a C-Rank skill.
Spell Creator: Allows possessor to create new spells.
In this world, the people who have mana can only uses magic bestowed by the Gods. There are about 300 types of magic recorded bestowed by the Gods.
However, Spell Creator allows me to make my own spells, allowing for infinite possibilities. Using the advance knowledge in that world, I am sure I can make a lot of powerful spells.
Instinct: Allows the possessor of this Skill to detect or sense any type of danger that is aimed or headed toward the possessor a few seconds before happening and instinctly avoid it.
"The Gods must be blind with how powerful this skill is. How can a Skill like this even be listed as a C-Rank Skill."
This skill is insanely broken, within that few seconds timeframe, I can evade any types of danger aimed or throw at me. However this skill is also useless in a situation that I am unable to avoid it. For example, the aircraft that I am flying on have a mechanical problem mid-flight and will crash. But as a Skill used in battle, it is extremely useful.
For my two skills D-Rank skill, I only chose related with controlling and using Magic.
Mana Control Mastery: Allows the possessor of this Skill to control mana within body and manipulate the mana in the surrounding more efficiently. It also allow the possessor use magic easier.
This skill can allows me to do many things with it. One of them is to control and use any type of new spell I created using my skill spell creator more efficiently or when I am fussing two or more type of elements in magic easier.
Silent-Chanting Mastery: Allows the possessor of this Skill to chant magic spell using their imagination or their inner voice.
This skills allows me to use magic without chanting it out loud, which is quite an advantage since most people need to chant their spells out loud before the spell turns the magic on, as it will let their opponents know what kind of magic they'll use while I am able to hide what spell I am going to use and more faster to be deployed as chanting a spell is longer compared to imagining it.
For my last 2 E-Rank Skill, it will be something for normal daily skills since most skill in this rank are only normal skills.
Emotion Control Mastery: Allows the possessor of this Skill to control their emotion more efficiently.
Although this skill sounded useless, but it is quite powerful especially during a battle where we need to have a cool head. Those who often lose their emotion in battle will often lose their head in battle.
Libido Enhancement: This Skill increases the possessor's sexual drive. The rate of sexual drive is increase by a factor of one hundred. The sexual drive rate can further be increase with training. This skills also makes its possessor more attractive to the opposite gender and trustable to others due to the hormones it releases.
What? I am also a guy alright, even though I had a lover in my last life, I died while still being a virgin since she and my family were believer that sex should be done after marriage and towards their spouse. Besides, the lifespan of the people of that universe is super long and it will give me more than enough time to heal from the pain of losing them since I will not be able to meet her and the others again and it is also not mentally healthy for me to stick to the past too long. This time I'll make sure I can get myself a wife who I will spend my life together while having fun with each other every moment we have with the family we created.
With these ten skills, I am confident to say I am ready to face the challenges ahead of me. The only thing to do is train and prepare myself before facing the Fallen God's Champion. I hope you guys will bless me on this journey.