Reincarnation of a human to be turned to a god

Chapter 8-Exhausting magic

After I got back to my temporary living place plus I can't make a house since im too big and the trees here is a bit small for making a wooden house but tall and big enough to hide me.
"Crap I forgot to take this chickens skills I just hope I can still take it"(Zach)
"Well then here we go(Copy)"(Zach)
But nothing popped up in front of my face saying I acquired the skill.
"Huh? It didn't work?"(Zach)
"Now that you say it the old man said it has a chance of working so I guess that means I got lucky taking the skill of that big horned monster"(Zach)
I guess I'll just keep on trying to take this chickens skills until I exhaust my mana.
"(Copy)"(Zach)
Im getting tired, what is happening to me?
Then something popped up in my face before i passed out saying Skill 'Copy' levelled up.
After a few hours
After I woke up I remembered that I passed out while I was using magic.
"What just happened to me?"(Zach)
I checked my stats and my mana went back to full again then something cam up to mind.
"So I guess I get tired when my mana gets low and I will pass out when it goes to zero"(Zach)
I checked my stats again and noticed something my max mana cap. increased a lot.
So if I use magic everyday or until I pass out it will increase?
"I guess I should thank that old man for giving me a boost on learning things"(Zach)
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Meanwhile in the gods realm

"He's doing pretty well right now I just hope he will be ready for what will happen soon(Laughs internally)"(Old man)
I've always been a loner in the gods realm most of the gods are high ranked while me I just avoid them since im not even on their league, but soon it will change, I might ***** *** on ********* and *** as *** *******(Sorry but its for the upcoming chapters so im gonna have to censor  on what he will be doing in the future)
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I kept on repeating what I did a while ago and noticed that I can use the skill 20 times without stopping.
"Doing this really did pay off"(Zach)
I checked the skills(copy) description and it says

Copy
Mana consumption-29
Chances of working-3
~Copies skills of the dead target if levelled up to level 15 the skill can copy the skills of live targets. Effective on targets that have low level than the user.
~Each level reduces mana consumption by .5 and increases chance of copying skills by 1
(Note:The skill levelled up while he was training(and fainting))
"Isn't this skill kind of OP?"(Zach)
Well it will be OP if it reaches the max level.
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If you guys want to see Zach's stats here you go.

Name:Zach Tempest
Age:15
Race:Dragon
Level:8
HP:9740/9740
MP:600/600
Strength:4800
Agility:2489
Intelligence:762
Stamina:1937
Active skills:Cooking, Cleaning, Copy
Human morphing
Passive skills:Disease resistance, Regeneration(Dragon species exclusive), Dash
Affinities:Fire, wind, space
Titles:Another worlder
(Note:Zach's boost is 3x so he will not only gain 3x exp but also 3x stats per level)