Baldur's Gate II: Shadows of Amn (2000)

Pausing to understand a spell protection can turn an apparently impossible fight into a satisfying plan. Party roles and layered magic repay learning, but second-edition D&D rules need explanation. Enhanced Edition is the practical starting package and includes Throne of Bhaal. Start its Shadows of Amn campaign, use the tutorial and keep the manual handy rather than opening with the expansion.