GAS Counter Marathon - 9 5v5 Counters SWGOH

I'm a new player how long will it take to get my first Galactic legend

JKR, JKL, GAS, JMLS, and Wat is not a real counter lol.. That’s burning crucial characters from 5 different squads to take down one team. And it’s no surprise to anyone that it would work

can the GG + Wat still counters GAs?