Katarina's early laning is weak, so focus on safe farming. With high mastery, she becomes an explosive force in teamfights and skirmishes.
Mastering E resets and dagger combos (e.g., E-W-Q-R-E) is key; build items like BotRK and Kraken Slayer for potent damage spikes.
Late game, Katarina can dominate squishy targets with dagger combos alone, even without her ultimate. Quick and precise execution is paramount for victory.