Heh, appreciate the positivity. I don’t mean to say that, because they’re bottom 3, that means Testament can’t win. I mostly use tier lists to help recognize where I may have trouble and need to work to learn the particulars, such as for matchups. The game is very well balanced overall, despite a few small hiccups.
But yeah, my f.S is definitely my main tool for getting hits to confirm off of at range. HS is decent, but very slow and can be punished hard by any sort of disconnected hitbox, so I tend to use it predictively and as a followup more than a poke; great for juggling, though, since it hard bounces. Fireball is a staple, as well, and Arbiter is nice for checking movement (catches dashs if they start out of range).
But yeah. Mostly just need to practice actually using RCs and WAs in real matches. Practiced combos in the lab enough that more isn’t helping a ton.