I can understand how that would be frustrating. Maybe they could add something in the enemy's status bar that would indicate what kind of shield they have (i.e. the symbol for the damage type it requires). Until Bungie figures out a work around, I would suggest memorizing what enemies have certain kinds of shields. To help: Fallen: Shank=solar Captain=arc Hive: Knight=arc Wizard=solar Cabal: Centurion=solar Psion=void Vex: Harpy=arc Minotaur=void I think there are a few more, but idk what they are. I also know the Dust Palace Strike probably sucks... Sorry.