@Vincent It is limited but that doesn't mean he only has a little bit of it he harvested it from the body of the venom g** so he has whatever was left in the corpse he also has merged that blood with some of his skills and summons so he may be able to replenish it since after he did that he started using it more. Even then though he doesn't use it on low level enemies just dimi g**/ g** level enemies or in situations that require the power of laws.all that is to say plot driven story excuses as to why he can use an op item so often.