"Protection from Demons and from Dragons" means the following: -- Baneslayer Angel can't be blocked by creatures with the creature type Demon or the creature type Dragon. -- Baneslayer Angel can't be targeted abilities from sources with the creature type Demon or the creature type Dragon, or by spells with either of those types. -- All damage that would be dealt to Baneslayer Angel by sources with the creature type Demon or the creature type Dragon is prevented. -- Baneslayer Angel can't be enchanted by Auras or equipped by artifacts that have somehow gotten the creature type Demon or the creature type Dragon.