我等待了3年,在雨中向对手刺去最后一剑,宣布王者归来"的英文翻译

i waited three years, piercing my enemy with the final sword in the rain, declaring the return of the king

I have been waiting for three years. The day finally came when I made my last lunge to my rival in the rain and claimed the title of the champion/claimed the come back of the champion.
lunge---A sudden thrust or pass, as with a sword.刺去(剑)
对手---rival(竞争者,竞争对手)