axe kick

I’ve only recently started my karate training, earning my 6th kyu, but I have my first dan in tangsoo do and gongkwon yusul and my 2nd dan in TKD. I love using axe kicks in Taekwondo sparring but since transitioning to shotokan karate I notice no one throws it. So really my question is in...

What's your favorite attack / specialty or school specialty. Ex: my school's specialty is the axe kick // my personal favorites are side kicks, roundhouse kicks, and anything that involves jumping (because I'm barely over five feet tall haha). What about you? I'm just curious. Thanks for reading...