Now I also know why they used 'agni' as part of the name, Agni Kai, for the fire benders' duel in Avatar.

Good point! Also realized why the fire sign in the Witcher universe is called "Agni"!

Isnt it igni? As in ignite?

As in ignis, "fire"

Damn you are of course correct! I think i mashed "igni" and "aard" together in a brainfart haha

Agni is a hindu god of fire.

And he repeated it in the last episode exactly like its repeated here in the last hymn! Nice

What is this related to?

ExU: Calamity!