Feat[]
According to himself, a mere 0.1% of his magic power is enough to rotate the Earth for a year.
Calc[]
According to this blog, the rotational energy of the Earth for a day is 2.58e+29 joules (Moon level)
Then we need to find his full power from that small percentage:
100 / 0.1 = 1000
So we simply need to multiply that figure by a thousand to get 100% of his power.
2.58e+29 x 1000 = 2.58e+32 joules
Result[]
Nikitis' Full Power = 2.58e+32 joules [Planet level]