I find it hard to farm with new Katarina rework + struggle to escape without ward jumps
Back then you can Q-->shunpoo--->W to both easily harass the enemies while clearing minion waves easily. But now, not only can't you predict where the w dagger lands, but you also struggle to clear waves if the dagger lands far behind the minions, while risking to take a lot of enemies' harass.
Btw, ward jump used to be a big part of katarina for her escape, and now basically she has little or no escape, which is essential for assassins. So, she either snowballs hard, or feed hard.