Katarina (Kat) is a bare-bones, poke-heavy, counterhit-baiting character. She is great for beginners due to her low execution requirements on key moves and staple combos, as well as her simple-to-understand gameplan. Her main focus is to use pokes to annoy her opponent into attacking when they shouldn't, leading to some huge damage payoffs for Kat if she succeeds. She benefits a lot from good fundamentals and the ability to pick up on your opponent's tendencies.
Katarina can struggle to open defensive opponents up due to a lack of strong lows. She has either very high-risk/high-reward lows, or low damage pokes which don't give her momentum to continue pressure.
Simple to pick up and use - good generic Tekken tools and simple gameplan
Easy execution on key moves and combos
Great CH tools
Good damage in the open, great damage with walls
Excellent range on whiff punishers
Weak lows - are either low damage (d+3) or very risky (df+3+4, db+3, db+4)