Quote Originally Posted by Kabooa View Post
TBN cost nothing when it breaks.

It can be used more often.

It always grants its maximum value.

Aurora is garbage. It only excels in making dungeon pulls extremely easy to manage via constant global threat. As a healing tool it is -terrible-.
It does cost, you can't use it at 0 mana so it requires good management and it will lose it's value if you don't use it at the perfect time.