Abyssal Ooze Card card_coral_abyss

What it is for

Card: fits into Right hand gear that has a free slot.

Chance to cast a Water strike on attack 8%. Damage against bosses +28%.

Weighs 2 of your carry capacity — and weight is what stops drops once the bag fills up.

The best source is Abyssal Ooze, at 0.020% per kill. You can farm it at Coral Abyss.