[The Fifth Horseman]

I did the same a few times, altough not for parody reasons - Hammerfall's "Hero's Return" seemed oddly appropriate for Dark Angels army in Warhammer 40k - re-named "Lion's Return" and a bit adjusted...

In a time of fear and confusion,
silence charging the air
The sunlight is gone, Chaos lives on
in the heart of traitor’s lair

Lost in a world of illusions
No trace of the missing sword
Steeling our souls back in control,
knocking at death’s door


All our beliefs fading into ashes
Heed the words that we pray


For the Lion’s Return our hearts still yearn
Rise and conquer, let the betrayers burn


Now we charge, the battle is raging,
blood runs everywhere
Our anger is fierce, avenging the years
No time for a final prayer


Behold, the might of the Angel,
Heavenly bringer of death
There’s nowhere to run, nowhere to hide
You won't escape his wrath


Somewhere out there lies a new tomorrow
for me and those who believe


For the Lion’s Return our hearts still yearn
Rise and conquer, let the betrayers burn
For the Lion’s Return our hearts still yearn
Rise and conquer, let the betrayers burn


Ooooh… Ooooh…
Ooooh… Ooooh…


Now I return from a place far beyond
My mission I set, let it be done


We still belive in a brighter future
The dreams are ours to fulfil


For the Lion’s Return our hearts still yearn
Rise and conquer, let the betrayers burn
For the Lion’s Return our hearts still yearn
Rise and conquer, let the betrayers burn