Catwoman/Batman Returns

Strategy
Batman Returns Catwoman is a deadly card with deadly games; her passive wrecks havoc with cards such as herself, Scorpion, and Aquaman. Damage over time has never been more effective. With her ability, your opponents will take serious bleed damage, even if they block. In addition, her decent damage stat is enough to deliver crushing blows while your foes bleed out.

She functions as an Arkham card, benefitting from Bane/Arkham Origins' extra bar of power and Harley Quinn/Arkham's +25% health and unblockable chance on Sp2 (although this might possibly be a glitch). She also increases The Joker/Arkham Origins poison DOT by 400%, first doubling The Joker's DOT, then doubling it again with her own passive (600% total with another Arkham card).

For a very long time, her passive was bugged and did not increase damage and was finally fixed some time in early 2015.

Her passive does not affect the bleed from Darkseid/Apokolips's passive, or the burning on special from gears (e.g. The Ibistick), although the Bleed from her S1 will increase their damage by 20%.

Abilities
Here are Catwoman's abilities.

Support Cards and Gear
Here are Catwoman's support cards and gear.