Blood Shield

Description
Despite the card's description, gain is much higher that what it claims to have. When used, the player will start becoming at the rate of 1 Poison and 10 Shield per tick (0.4s) until they move away from their casting location. This equates to 25 Shield and 2.5 Poison on average per second.

Strategy and Synergy
Since poison damage ignores shield, the buildup can quickly become dangerous to the player if they are not prepared to handle it, e.g. with. Applying poison resets the timer until poison damage is taken, so the damage should not occur until after the spell finishes.

Blood Shield can allow you to stack a lot of Shield without having to, which would cause Shield to decay. This can be paired with Shield Throw in order to deal massive damage to a single target (such as bosses and final enemies in a room) and quickly end the battle, removing any remaining Poison stacks on you before it would have the ability to damage you.

As Aria Violette, you may use this spell without any serious repercussions, as you can still continuously stack Poison onto yourself with her weapon, Fermata. This repeatedly resets the poison timer, preventing poison damage from being taken as long as the timer never runs out.