Alex's Frame traps and OS

Since im pretty new to 3s i was wondering what are some of his frame traps and OS. Also if there is a place for me to find them because i didnt see a thread around here for it. Thanks!

Alex doesn’t really rely on frame traps and 3S doesn’t have a counter hit.
Alex relies on gaining momentum and mixup after knocking down an opponent.

the 4 series is overly complicated and full of things from various sf games that are kind of thrown together. 3s does not have all of this.