Boss Strategies

The Lady in Black

 * Using the sliding boots + rapier combination, slice through the swarm of cards, without fear! Dash away afterwards. Rinse and Repeat!
 * An item that grants extra mobility is very helpful for catching up to the Lady or the Demon to land hits. The Rapier Soul, a good pair of boots, or even a Teleport Power Orb all work well.
 * A sufficiently upgraded Gust can knock away the Lady's cards, making her unable to throw them at you or use them as a shield.
 * The Lady will spawn minions occasionally, but they're low priority. Focus on either her or the Demon.

Often times there are Potions of the Jackal within the chamber. Use them if you have time left after the fight if you have spare Health Potions around.