We looked at how Katarina is doing in Competitive Matches and how certain picks enable her - Click Here to Watch.
Items ›Zhonya's Hourglass
+70 Ability Power
+10% Cooldown Reduction
UNIQUE Active - Stasis: Champion becomes invulnerable and untargetable for 2.5 seconds, but is unable to move, attack, cast spells, or use items during this time (120 second cooldown).