Ulquiorra watched their enemy grow enraged, and swipe at Grimmjow. Those claws were dangerous. Even his ow hierro would be no match for it, and while Ulquiorra sacrificed raw strength for regenerative ability, he'd prefer not to rely upon it.

This was a war of attrition. Each was trying to wear the other down, but by their nature, he and the other Arrancar were more fragile than their enemy.

He drew his sword. If it attacked with its current ferocity, he risked being injured if he relied upon his hierro alone to hold off the damage.

That was an uncomfortable realisation.