Giant Bat

I am tempted to summon one to try my luck with it.
But before I do that I would like to know how much blood approximately does it have.
And as far as strategy goes I seen some say that you should stun it and trow in a thrust or two and than cleave him and his minions to the oblivion.
Is there any different approach to the fight?
But before I do that I would like to know how much blood approximately does it have.
And as far as strategy goes I seen some say that you should stun it and trow in a thrust or two and than cleave him and his minions to the oblivion.
Is there any different approach to the fight?