Stone To Wake A Serpent

We've found a weapon
[?]

On the other side of the earth
Waiting as the world turns

Here, we see a coiled serpent
Black and naked in the sun

Stone is flung at the serpent, wake him
An arrow of poison pierces our hearts

[?]

Slow infection
[?] poison
Numbs the limbs?
Numbs the limbs?

[?]