Pure Paladin Standard

Aldor Attendant and Libram of Wisdom are pretty standard Libram paladin mulligan choices as they give you a nice tempo on turn 1 and 2. High Abbess Alura gives you a chance to cast one of your other librams to add to Liadrin's pool. Aldor Truthseeker gives you a decent turn 5 along with libram of wisdom to give you a 5/7 with taunt, forcing the enemy to trade into it or deal with it. First day of school would give you a turn 1 should you not have Aldor Attendent in your opening hand, prefer Aldor attendant over First Day of School. Devout Pupil is excellent in this deck and a good mulligan to have given the amount of Librams and spells you'll be casting with Lightforged Crusader, along with Aldor Attendant and Libram of Wisdom in the opening hand would make this the ideal opening hand to have, given that you can likely get Devout Pupil out by turn 3 or 4.