Weird invis blizz + ender creeper in myst dimension

[Juanitierno]

Hello!

I have a randomly crated myst age where I set up a tree farm.

It how seems to be inhabited by some sort of invisible blizz... it shoots snowballs at me and kills me, and when I die, it spawns ender creepers randomly (the ender io ones i think), which end up exploding abnormally fast when i come close.

Im not sure how to deal with them, since I cant see them or attack them...

Any ideas?

 

[Juanitierno]

Upon further (and involuntary) exploration it seems its some sort of bugged blizz... catching it with a safari net says blizz, and killing it in an mfr spawner+grinder yields snowballs and blizz rods.

They look like the concussion creepers tho, and they become invisible when flying.