We looked at how Katarina is doing in Competitive Matches and how certain picks enable her - Click Here to Watch.
+100 Ability Power
UNIQUE Passive: +20% Cooldown Reduction
UNIQUE Passive: Dealing magic damage to champions below 35% Health inflicts Grievous Wounds for 8 seconds.
UNIQUE Passive: Kills and Assists restore 20% of your maximum Mana.