Lady Agadra of Waterdeep

Flash, Protection from Black
Whenever Agadra enters the battlefield, return
target spell to it's owner's hand.
If a permanent you control would be dealt
damage, prevent 2 of that damage. If that damage
would be dealt by a source that is a demon, devil
or zombie, prevent 4 of that damage instead.
"In the name of Helm, you shall not harm them !"