Katarina's older and better sister

-Very tanky, most end up with over 3k health -Very high damage -Strong early, mid, and late game -Mobile -Basic attack heals her with Hiten Style -Stuns you when she's about to die, then heals herself when attacking you -Too tanky for mages to burst and deals damage too high for assassins to get close to

She's basically with a better early game but way tankier. Even when she's not fed she's this dangerous. How do you beat this?