Yugioh: i dont understand five-headed dragon's effect?

Question

the bit were it says "this card does not take any battle damage"

i dont get it

Answer 1

its like if some how someone has a 6000 or a 5500 attack monster and it gets killed it doesn't take battle damage

"This card does not take any Battle Damage and cannot be destroyed by battle with an EARTH, WATER, FIRE, WIND, or DARK monster."

Answer 2

only light monsters can destroy it by battle and no monster of any other atribute!! ^_^