Sorry for the loud music, I was playing it and didnt realize it would be recorded too.

https://pastebin.com/DBZSyRGt

Impaler for 5 big impale stacks and storm brand battlemage cry to "pull out" the impales. Great Old One's tentacles combined with Impaler makes barely visually noticeable proliferating impale "explosions" 50% of the time on enemy death.