Also, the Magic Potion card has its uses. The Magic Potion system card will greatly increase your spirit regeneration for a duration, and instantly recover crushed orbs. You know when you hear a "clank" sort of noise if you block incorrectly and see one of your spirit orbs turn orange? That means it's been crushed, which renders it unusable until it's restored. This would only otherwise be possible by waiting, so if you've had several orbs crushed by wrongblocking or Border Escaping, Magic Potions can be very useful. Or if you just like spamming bullets.