Icestorm limit with spell cascade and unlesh

Hello,

im wondering about this and even asked on reddit but got conflicting information

how does Icestorm (limit of 5 icestorms at time) work with AWAKENED Spell Cascade AND Unleash ??

Does spell cascade create new icestorms (thus counts towards the limit) or does it just affect the AoE thus Icestorm + ASC = 1 icestorm ??

and how exactly Unleash works ?? peopel say it CASTS another 3 icestorms but on the gem itself it only states "making thier effect reocur" (it dosnt say "skill reocur" or "cast reocur" or something more clear) so does Icestorm + Unleash cast 1 icestorm with quadruple the effects or does it casts 4 separate icestorms at once ???

ultiamtely i want to use selfcast
Icestorm + Awakened Spell Cascade + Awakened Unleash
but i cannot say from the wording if its even viable or not

Thanks for answers