Why haven't we been able to see আরো of Ursula's powers?

It really pisses me off that we never got to see আরো of her powers! She's a sea witch! She's supposed to be all powerful and even আরো powerful then her father! All we got to see was her tentacles and if anything else, she used magic to attempt to get her গান গাওয়া voice back. We never got to see her wreck havoc on the ocean with her powers! We never got to see her conjure storms অথবা do underwater potions অথবা anything! I hate it when a character is only described as extremely powerful but it's never shown!